Word evolution game

[foxcatdog]

Language 1a1: Long vowels or vowels with nasal codas undergo a chain shift from *a > *ɔ > *o > *u > *y > *ju
[wuŋ θju: djeːi̯ fuːj fɔːf saːks ˈsɔːyŋ aːt nuŋ θɔŋ]
wong, thui, dreei, four, foaf, saex, saaun, aet, noang, thang

Language 1a2a: Great vowel shift happens again but also including liquid diphthongs this time
[ɔ su dɻai fuɻ fiː ze:ɡ zev et nɔ se]
wann, thu, drii, four, faif, seigs, saavn, eight, nann, thenn

Language 1a2b1: Diphthong lowering which makes the result in “three” just like its 1a2a counterpart
[o su dɻai̯ fuɻ faː zaːɡ zav ɛt no sa]
wonn, tuu, drei, four, faaf, saags, savn, eght, nonn, tann

Language 1a2b2: Diphthong smoothing including with a few weakened consonants as well as orthographic reform
[o su dɻe: fuɻ faː zʌ: zɔ: ɛt no sa]
o, su, drei, fu, faa, zuu, zoa, eat, no, sa

Language 1b: Voiced obstruents lose their voicing
[kɔ tʰu pʰei̯ ho: ha: sa:kʰ ˈsɛ:v apʰ nɔ pʰɛ]
woa, tou, threi, hoor, hach, saex, seavn, aet, noa, tea

Language 2a: Long vowels become diphthongs
[ŋjɔ ɬwi zɻju vwɛ vav zɛk zɛn hɛt njɔ ɬjɔ]
gne, thew, thrie, voar, vaav, seck, sevn, height, neghn, seghn

Language 2b: Chain shift of Voiced Affricate > Voiceless Affricate > Voiceless Fricative > Voiced Fricative
[bãː ʕiː ɕiː ˈboʕa baːjf ˈseʕaħ ˈseːbn̩ ˈeʕat nãːj ʕẽː]
bā, gxī, shī, bogxa, bāyf, segxax, sēben, egxat, nāy, gxē

Because i like more vowel differences.

[foxcatdog]

A bunch of proto germanic mammal names. Some of these are hypotheticals and some of these don't really work with their english equivalents. The *a stems come in 3 different varieties for males, females and diminuitives. Germanic has 3 primary branches so i suggest whoever kicks of the sound changes starts with 3 forms.
Germanic Mammal names
[ˈwulfɑz ˈɸuxsɑz ˈkitɑz ˈcɑnɑz ˈxʷɑlɑz ˈβɑizɑz ˈkɑprɑz ˈutrɑz ˈki:jɑitɛ:nɑz ˈli:ɣɑinɑz ˈpɑnθrɑz ˈgrifenɑz ˈɸe:rɔ: ˈβerɔ:: ˈrɑkkɔ:nɛ̃::ˈwisulɔ̃: ˈβebruz ˈkɑttuz]
[ˈwulfi:ni ˈɸuxsi:ni ˈkiti:ni ˈcɑni:ni ˈxʷɑli:ni ˈβɑizi:ni ˈkɑpri:ni ˈutri:ni ˈki:jɑitɛ:ni:ni ˈli:ɣɑini:ni ˈpɑnθri:ni ˈgrifeni:ni]
[ˈwulfũ ˈɸuxsũ ˈkitũ ˈcɑnũ ˈxʷɑlũ ˈβɑizũ ˈkɑprũ ˈutrũ ˈki:jɑitɛ:nũ ˈli:ɣɑinũ ˈpɑnθrũ ˈgrifenũ]
wulfaz fuhsaz kitaz canaz hwalaz baizaz kapraz utraz kījaitēnaz līgainaz panþraz grifenaz fē₂rō berô rakkōnę̂ wisulǭ bebruz kattuz
wulfīni fuhsīni kitīni canīni hwalīni baizīni kaprīni utrīni kījaitēnīni līgainīni panþrīni grifenīni
wulfų fuhsų kitų canų hwalų baizų kaprų utrų kījaitēnų līgainų panþrų grifenų

I'm staying up late so i've come up with the changes to the 3 primary branches of the language.

Western Branch
Undergoes anglo frisian brightening in the same environments as english
[ˈwulfæz ˈɸuxsæz ˈkitæz ˈcɑnæz ˈxʷælæz ˈβɑizæz ˈkæpræz ˈutræz ˈki:jɑitɛ:næz ˈli:ɣɑinæz ˈpɑnθræz ˈgrifenæz ˈɸe:rɔ: ˈβerɔ:: ˈrɑkkɔ:nɛ̃::ˈwisulɔ̃: ˈβebruz ˈkættuz]
[ˈwulfi:ni ˈɸuxsi:ni ˈkiti:ni ˈcɑni:ni ˈxʷæli:ni ˈβɑizi:ni ˈkæpri:ni ˈutri:ni ˈki:jɑitɛ:ni:ni ˈli:ɣɑini:ni ˈpɑnθri:ni ˈgrifeni:ni]
[ˈwulfũ ˈɸuxsũ ˈkitũ ˈcɑnũ ˈxʷælũ ˈβɑizũ ˈkæprũ ˈutrũ ˈki:jɑitɛ:nũ ˈli:ɣɑinũ ˈpɑnθrũ ˈgrifenũ]

Northeastern Branch
Umlaut
[ˈwulfɑz ˈɸuxsɑz ˈkitɑz ˈcɑnɑz ˈxʷɑlɑz ˈβæizɑz ˈkɑprɑz ˈutrɑz ˈki:jæitɛ:nɑz ˈli:ɣæinɑz ˈpɑnθrɑz ˈgrifenɑz ˈɸe:rɔ: ˈβerɔ:: ˈrɑkkɔ:nɛ̃::ˈwisulɔ̃: ˈβebruz ˈkattuz]
[ˈwylfi:ni ˈɸyxsi:ni ˈkiti:ni ˈcæni:ni ˈxʷæli:ni ˈβæizi:ni ˈkæpri:ni ˈytri:ni ˈki:jæitɛ:ni:ni ˈli:ɣæini:ni ˈpænθri:ni ˈgrifeni:ni]
[ˈwulfũ ˈɸuxsũ ˈkitũ ˈcɑnũ ˈxʷɑlũ ˈβæizũ ˈkæprũ ˈutrũ ˈki:jɑitɛ:nũ ˈli:ɣæinũ ˈpɑnθrũ ˈgrifenũ]

Southeastern Branch
*a mutation of short *u and *i and long *ō and *ē shorten to *o and *e after a stressed vowel or when nasal (ē₂ still remains)
[ˈwolfɑz ˈɸoxsɑz ˈkitɑz ˈcɑnɑz ˈxʷɑlɑz ˈβɑizɑz ˈkɑprɑz ˈotrɑz ˈki:jɑitɛnɑz ˈli:ɣɑinɑz ˈpɑnθrɑz ˈgrefenɑz ˈɸe:rɔ ˈβerɔ:: ˈrɑkkɔnɛ̃::ˈwisulɔ̃ ˈβebruz ˈkɑttuz]
[ˈwulfi:ni ˈɸuxsi:ni ˈkiti:ni ˈcɑni:ni ˈxʷɑli:ni ˈβɑizi:ni ˈkɑpri:ni ˈutri:ni ˈki:jɑitɛni:ni ˈli:ɣɑini:ni ˈpɑnθri:ni ˈgrifeni:ni]
[ˈwulfũ ˈɸuxsũ ˈkitũ ˈcɑnũ ˈxʷɑlũ ˈβɑizũ ˈkɑprũ ˈutrũ ˈki:jɑitɛnũ ˈli:ɣɑinũ ˈpɑnθrũ ˈgrifenũ]

[Darren]

Language 1a1: /θj dj/ > /ç ɟ/
[wuŋ çu: ɟeːi̯ fuːj fɔːf saːks sɔːyŋ aːt nuŋ θɔŋ]
wong, thui, dreei, four, foaf, saex, saaun, aet, noang, thang

Language 1a2a: /ɻ/ > /ɣ/
[ɔ su dɣai fuɣ fiː ze:ɡ zev et nɔ se]
wann, thu, drii, four, faif, seigs, saavn, eight, nann, thenn

Language 1a2b1: /aː/ > /æ/
[o su dɻai̯ fuɻ fæ zæɡ zav ɛt no sa]
wonn, tuu, drei, four, faaf, saags, savn, eght, nonn, tann

Language 1a2b2: Coda liquids metathesise to onset
[o su dɻe: fɻu faː zʌ: zɔ: ɛt no sa]
o, su, drei, fru, faa, zuu, zoa, eat, no, sa

Language 1b: /pʰ/ > /h/, reflected in orthography
[kɔ tʰu hei̯ ho: ha: sa:kʰ ˈsɛ:v ah nɔ hɛ]
woa, tou, hei, hoor, hach, saex, seavn, ah, noa, hea

Language 2a: /ŋj nj/ > /ŋ̩ɡj n̩dj/
[ŋ̩ɡjɔ ɬwi zɻju vwɛ vav zɛk zɛn hɛt n̩djɔ ɬjɔ]
gne, thew, thrie, voar, vaav, seck, sevn, height, neghn, seghn

Language 2b: 6 changes irregularly to rhyme with 8 (/ˈseʕaħ/ > /ˈseʕat/), minor orthographic changes
[bãː ʕiː ɕiː ˈboʕa baːjf ˈseʕat ˈseːbn̩ ˈeʕat nãːj ʕẽː]
ban, gxi, shi, boa, bayf, seat, seben, eat, nayn, gxen

[Rounin Ryuuji]

Language 1: Terminal [ŋ] > [j] or [w], depending on the preceding vowel, the spelling is somewhat "corrected" to reflect Classical English, though many instances of [j] are "corrected" to graphical "r";
[wuw çu: ɟeːi̯ fuːj fɔːf saːks sɔːyj aːt nuw θɔw]
woun, thew, dreir, four, foav, saax, soavrn, aaght, noun, thoan

Language 1a2a: /ɣ/ > /j/ after consonants and terminally; many of the above "corrections" spread;
[ɔ su djai fuj fiː ze:ɡ zev et nɔ se]
woan, thouw, drair, four, fier, seirg, sevn, eight, naon, their

Language 1a2b1: /ai̯/ > /a/; the orthography is influenced by the above also;
[o su dɻa fuɻ fæ zæɡ zæv ɛt no sæ]
Woon, thouw, dra, four, faav, zaag, zaavn eght, noon, thaan

Language 1a2b2: [ʌ:] > [aː], minor spelling changes
[o su dɻe: fɻu faː za: zɔ: ɛt no sa]
o, su, drê, fru, fâ, zâ, zôa, eat, no, sa

Language 1b: Lower-mid vowels break [ɔ ɛ] > [wa ja], the orthography does not change;
[kwa tʰu hei̯ ho: ha: sa:kʰ ˈsja:v ah nwa hja]
woa, tou, hei, hoor, hach, saex, seavn, ah, noa, hea

Language 2a: What on Earth is this? Eh, lower-mid vowels can also break here, too (with no orthographic change); the shift is blocked by a preceding [w] or [j]:
[ŋ̩ɡjɔ ɬwi zɻju vwɛ vav zjak zjan hjat n̩djɔ ɬjɔ]
gne, thew, thrie, voar, vaav, seck, sevn, height, neghn, seghn

Language 2b: Again, what on Earth? Denasalisation, no orthographic change:
[baː ʕiː ɕiː ˈboʕa baːjf ˈseʕat ˈseːbn̩ ˈeʕat naːj ʕeː]
ban, gxi, shi, boa, bayf, seat, seben, eat, nayn, gxen

[foxcatdog]

Language 1: Terminal [ŋ] > [j] or [w], depending on the preceding vowel, the spelling is somewhat "corrected" to reflect Classical English, though many instances of [j] are "corrected" to graphical "r";
[wuw çu: ɟeːi̯ fuːj fɔːf saːks sɔːyj aːt nuw θɔw]
woun, thew, dreir, four, foav, saax, soavrn, aaght, noun, thoan

Language 1a2a: /ɣ/ > /j/ after consonants and terminally; many of the above "corrections" spread;
[ɔ su djai fuj fiː ze:ɡ zev et nɔ se]
woan, thouw, drair, four, fier, seirg, sevn, eight, naon, their

Language 1a2b1: /ai̯/ > /a/; the orthography is influenced by the above also;
[o su dɻa fuɻ fæ zæɡ zæv ɛt no sæ]
Woon, thouw, dra, four, faav, zaag, zaavn, eght, noon, thaan

Language 1a2b2: [ʌ:] > [aː], minor spelling changes
[o su dɻe: fɻu faː za: zɔ: ɛt no sa]
o, su, drê, fru, fâ, zâ, zôa, eat, no, sa

Language 1b: Lower-mid vowels break [ɔ ɛ] > [wa ja], the orthography does not change;
[kwa tʰu hei̯ ho: ha: sa:kʰ ˈsja:v ah nwa hja]
woa, tou, hei, hoor, hach, saex, seavn, ah, noa, hea

Language 2a: What on Earth is this? Eh, lower-mid vowels can also break here, too (with no orthographic change); the shift is blocked by a preceding [w] or [j]:
[ŋ̩ɡjɔ ɬwi zɻju vwɛ vav zjak zjan hjat n̩djɔ ɬjɔ]
gne, thew, thrie, voar, vaav, seck, sevn, height, neghn, seghn

Language 2b: Again, what on Earth? Denasalisation, no orthographic change:
[baː ʕiː ɕiː ˈboʕa baːjf ˈseʕat ˈseːbn̩ ˈeʕat naːj ʕeː]
ban, gxi, shi, boa, bayf, seat, seben, eat, nayn, gxen

Language 1a1a: Palatals stops lenite
[wuw çu: ʒeːi̯ fuːj fɔːf saːks sɔːyj aːt nuw θɔw]
woun, thew, dreir, four, foav, saax, soavrn, aaght, noun, thoan

Language 1a1b: Reverse great vowel shift in liquid codas
[wow çu: ɟeːi̯ foːj fɔːf saːks sy:j aːt now θwaw]
woun, thew, dreir, four, foav, saax, soavrn, aaght, noun, thoan

Language 1a2a: *ɔ > *a except initially and after a voiced stop (including nasals) where it becomes *wa
[wa su djai fuj fiː ze:ɡ zev et nwa se]
woan, thouw, drair, four, fier, seirg, sevn, eight, naon, their

Language 1a2b1: Coda liquids and voiced stops vocalise and to deal with homophony seven is replaced
[o su dɻa fui fæ zæu ɛto ɛt no sæ]
Woon, thouw, dra, four, faav, zaag, eto, eght, noon, thaan

Language 1a2b2: *ɔ: dissimilates in “seven”
[o su dɻe: fɻu faː za: zo: ɛt no sa]
o, su, drê, fru, fâ, zâ, zôa, eat, no, sa

Language 1b: Chain shift of mid diphthongs > high mid vowels > low mid vowels
[kwa tʰu he: hɔ: ha: sa:kʰ ˈsja:v ah nwa hja]
woa, tou, hei, hoor, hach, saex, seavn, ah, noa, hea

Language 2a: Glides are observed by the following vowel
[ŋ̩ɡœ ɬy zɻy vœ vav zæk zæn hæt n̩dœ ɬœ]
gne, thew, thrie, voar, vaav, seck, sevn, height, neghn, seghn

Language 2b: Adjacent pharyngeals front nearby vowels and are then lost. Hiatus is resolved by deletion of the second element. Orthography also updates
[baː iː ɕiː ˈbœ: baːjf ˈsɛ:t ˈseːbn̩ ˈɛ:t naːj eː]
baa ii shii boae baayf seat seebn eat naay ee

Also how did we get such homophony in six and seven?

[Darren]

Language 1a1a: Final clusters simplify, /i̯/ and /j/ merge
[wuw çuː ʒeːj fuːj fɔːf saːs sɔːy̯j aːt nuw θɔw]
woun, thew, dreir, four, foav, saas, soavrn, aaght, noun, thoan

Language 1a1b: /θw/ > /kʷ/
[wow çuː ɟeːi̯ foːj fɔːf saːks syːj aːt now kʷaw]
woun, thew, dreir, four, foav, saax, soavrn, aaght, noun, thoan

Language 1a2a: /nw dj/ > /m z/
[wa su zai fuj fiː zeːɡ zev et ma se]
woan, thouw, sair, four, fier, seirg, sevn, eight, maon, their

Language 1a2b1: Final vowels are lost in polysyllables if the preceding syllable is stressed, resulting in a falling tone on the previous vowel; this creates a pitch-accent system. Orthography changes to reflect this
[ó sú dɻá fû fǽ zæ̂ ɛ̂t ɛ́t nó sǽ]
O, thou, dra, foù, faa, zaà, èt, eght, noo, thaa

Language 1a2b2: Echo vowels inserted in complex onsets
[o su deˈɻeː fuˈɻu faː zaː zoː ɛt no sa]
o, su, drê, fru, fâ, zâ, zôa, eat, no, sa

Language 1b: /kw sj hj/ > /p ɕ ç/
[pa tʰu heː hɔː haː saːkʰ ɕaːv ah nwa ça]
woa, tou, hei, hoor, hach, saex, seavn, ah, noa, hea

Language 2a: /ŋ̩ n̩/ > /ẽ ã/, echo vowels inserted in complex onsets
[ẽˈɡœ ɬy zyˈɻy vœ vav zæk zæn hæt ãˈdœ ɬœ]
gne, thew, thrie, voar, vaav, seck, sevn, height, neghn, seghn

Language 2b: /n̩/ > /ni/, vowels shortened preceding voiceless consonants
[baː iː ɕiː ˈbœː baːjf ˈsɛt ˈseːbni ˈɛt naːj eː]
baa ii shii boae baayf seat seebn eat naay ee

[Rounin Ryuuji]

Language 1a1: Long vowels break: [uː eː ɔː aː] > [yj ej ey ɔu]; but > [æa ɥi je we] in syllables already closed by semivowels; otherwise one minor orthogaphic change:

[wuw çyj ʒjej fɥij feyf sɔus swey̯j ɔut nuw θɔw]
woun, thew, dreir, four, foav, saax, soavrn, aaght, noun, thoan

Language 1a1b: Long-vowel breaking spreads upon the same lines, except [uː yː oː] > [au yj ou]; [yː oː] > [ɥi uo] before semivowels; no orthographic changes:
[wow çau ɟiei̯ fuoj feyf sɔuks sɥij ɔut now kʷaw]
woun, thew, dreir, four, foav, saax, soavrn, aaght, noun, thoan

Language 1a2a: Absorption of [i j] in the preceding vowel, lengthening and fronting it; no orthographic changes:
[wa su zɛː fyː fiː zeːɡ zev et ma se]
woan, thouw, sair, four, fier, seirg, sevn, eight, maon, their

Language 1a2b1: Vowels with rising-falling pitch lengthen; orthography changes so that a doubled vowel represents rising-falling pitch; no orthographic changes:
[ó sú dɻá fû fǽ zæ̂ː ɛ̂ːt ɛ́t nó sǽ]
O, thou, dra, fou, fa, zaa, et, eght, no, tha

Language 1a2b2: All stressed, open syllables lengthen if they are not already long; no orthographic changes:
[oː suː deˈɻeː fuˈɻuː faː zaː zoː ɛt noː saː]
o, su, drê, fru, fâ, zâ, zôa, eat, no, sa

Language 1b: Coda [h] > [x], one small orthographic change:
[pa tʰu heː hɔː haː saːkʰ ɕaːv ax nwa ça]
woa, tou, hei, hoor, hach, saex, seavn, agh, noa, hea

Language 2a: /ŋ̩ n̩/ > /ẽ ã/, echo vowels inserted in complex onsets
[ẽˈɡœ ɬy zyˈɻy vœ vav zæk zæn hæt ãˈdœ ɬœ]
gne, thew, thrie, voar, vaav, seck, sevn, height, neghn, seghn

Language 2b: /n̩/ > /ni/, vowels shortened preceding voiceless consonants
[baː iː ɕiː ˈbœː baːjf ˈsɛt ˈseːbni ˈɛt naːj eː]
baa ii shii boae baayf seat seebn eat naay ee

[Darren]

Language 1a1: Simplification of di/triphthongs; /uw yj jej ɥij ey ɔu wey̯/ > /uː yː iː yː øː oː øː/
[wuː çyː ʒiː fyː føːf soːs søːj oːt nuː θoː]
woun, thew, dreir, four, foav, saax, soavrn, aaght, noun, thoan

Language 1a1b: Triphthongs simplify /wow iei̯ uoj ɥij/ > /uː iː uː yː/
[uː çau ɟiː fuː feyf sɔuks syː ɔut now kʷaw]
woun, thew, dreir, four, foav, saax, soavrn, aaght, noun, thoan

Language 1a2a: Coda obstruents lost
[wa su zɛː fyː fiː zeː ze et ma se]
woan, thouw, sair, four, fier, seirg, sevn, eight, maon, their

Language 1a2b1: /Cɻá/ > /Càɻá/ > /Cǎ/
[ó sú dǎ fûː fǽ zæ̂ː ɛ̂ːt ɛ́t nó sǽ]
O, thou, daha, foou, fa, zaa, et, eght, no, tha

Language 1a2b2: Consonants geminate and undergo fortition following a short vowel except word-finally
[oː suː deɖˈɖeː fuɖˈɖuː faː zaː zoː ɛt noː saː]
o, su, deddhê, fuddhu, fâ, zâ, zôa, eat, no, sa

Language 1b: /ɕ ç/ > /h/
[pa tʰu heː hɔː haː saːkʰ haːv ax nwa ha]
woa, tou, hei, hoor, hach, saex, seavn, agh, noa, hea

Language 2a: /œ æ/ merge to /ɛ/, /y/ unrounds to /i/
[ẽˈɡɛ ɬi ziˈɻi vɛ vav zɛk zɛn hɛt ãˈdɛ ɬɛ]
gne, thew, thrie, voar, vaav, seck, sevn, height, neghn, seghn

Language 2b: Echo vowels inserted after obstruent codas
[baː iː ɕiː ˈbœː ˈbaːjfi ˈsɛtɛ ˈseːbni ˈɛtɛ naːj eː]
baa ii shii boae baayf seat seebn eat naay ee

[Rounin Ryuuji]

Language 1a1: Terminal fricatives become semivowels, [s f] > [j w]; minor orthographic changes:
[wuː çyː ʒiː fyː føːw soːj søːj oːt nuː θoː]
woun, thewr, dreir, fewr, foav, soarx, soavrn, oaght, noun, thoan

Language 1a1b: [ɟ] > [ʑ], no orthographic changes:
[uː çau ɟiː fuː feyf sɔuks syː ɔut now kʷaw]
woun, thew, dreir, four, foav, saax, soavrn, aaght, noun, thoan

Language 1a2a: Coda obstruents lost
[wa su zɛː fyː fiː zeː ze et ma se]
woan, thouw, sair, four, fier, seirg, sevn, eight, maon, their

Language 1a2b1: Yod-intrusion before falling-rising pitch vowels, with shift to rising pitch:, one tiny orthographic change:
[ó sú djá fûː fǽ zæ̂ː ɛ̂ːt ɛ́t nó sǽ]
O, thou, dia, foou, fa, zaa, et, eght, no, tha

Language 1a2b2: Retroflexes affricate, no orthographic changes:
[oː suː deɖˈɖʐeː fuɖˈɖʐuː faː zaː zoː ɛt noː saː]
o, su, deddhê, fuddhu, fâ, zâ, zôa, eat, no, sa

Language 1b: [v] > [w], no orthographic changes:
[pa tʰu heː hɔː haː saːkʰ haːw ax nwa ha]
woa, tou, hei, hoor, hach, saex, seavn, agh, noa, hea

Language 2a: No change, since the last one had two changes rather than one:
[ẽˈɡɛ ɬi ziˈɻi vɛ vav zɛk zɛn hɛt ãˈdɛ ɬɛ]
gne, thew, thrie, voar, vaav, seck, sevn, height, neghn, seghn

Language 2b: Loss of terminal [j]
[baː iː ɕiː ˈbœː ˈbaːfi ˈsɛtɛ ˈseːbni ˈɛtɛ naː eː]
baa ii shii boae baayf seat seebn eat naay ee

[Travis B.]

How many centuries since present-day NAE have passed now, would you guys estimate?

[Rounin Ryuuji]

How many centuries since present-day NAE have passed now, would you guys estimate?

Given the degree of divergence, it's probably something like the year 3300 at least, and probably in several different areas. Language 1 is probably the United Statesian family still in North America, Language 2 is probably on an island colony, probably somewhere in the Pacific.

[Darren]

Language 1a1: /θ f/ > /f x/
[wuː çyː ʒiː xyː xøːw soːj søːj oːt nuː foː]
woun, thewr, dreir, fewr, foav, soarx, soavrn, oaght, noun, thoan

Language 1a1b: Word-initial stressed vowels gain prosthetic /j/
[juː çau ɟiː fuː fey̯f sɔu̯ks syː jɔu̯t now kʷaw]
woun, thew, dreir, four, foav, saax, soavrn, aaght, noun, thoan

Language 1a2a: Vowel shift /iː eː ɛː/ > /əː iː eː/
[wa su zeː fyː fəː ziː ze et ma se]
woan, thouw, sair, four, fier, seirg, sevn, eight, maon, their

Language 1a2b1: Pitch accent system lost, but length maintained on contour tones
[o su dja fuː fæ zæː ɛːt ɛt no sæ]
O, thou, dia, foou, fa, zaa, et, eght, no, tha

Language 1a2b2: Coda obstruents back to velars
[oː suː deɡˈɖʐeː fuɡˈɖʐuː faː zaː zoː ɛk noː saː]
o, su, degdhe, fugdhu, fa, za, zoa, eac, no, sa

Language 1b: /aːw/ becomes an overlong vowel /ɔːː/
[pa tʰu heː hɔː haː saːkʰ hɔːː ax nwa ha]
woa, tou, hei, hoor, hach, saex, seavn, agh, noa, hea

Language 2a: Dissimilation of two vowels of the same frontness in one word
[õˈɡɛ ɬi zuˈɻi vɛ vav zɛk zɛn hɛt ãˈdɛ ɬɛ]
gne, thew, thrie, voar, vaav, seck, sevn, height, neghn, seghn

Language 2b: /n/ added to "10" by analogy with "9"
[baː iː ɕiː ˈbœː ˈbaːfi ˈsɛtɛ ˈseːbni ˈɛtɛ naː neː]
baa ii shii boae baayf seat seebn eat naay nee

[foxcatdog]

Language 1a1: /θ f/ > /f x/
[wuː çyː ʒiː xyː xøːw soːj søːj oːt nuː foː]
woun, thewr, dreir, fewr, foav, soarx, soavrn, oaght, noun, thoan

Language 1a1b: Word-initial stressed vowels gain prosthetic /j/
[juː çau ɟiː fuː fey̯f sɔu̯ks syː jɔu̯t now kʷaw]
woun, thew, dreir, four, foav, saax, soavrn, aaght, noun, thoan

Language 1a2a: Vowel shift /iː eː ɛː/ > /əː iː eː/
[wa su zeː fyː fəː ziː ze et ma se]
woan, thouw, sair, four, fier, seirg, sevn, eight, maon, their

Language 1a2b1: Pitch accent system lost, but length maintained on contour tones
[o su dja fuː fæ zæː ɛːt ɛt no sæ]
O, thou, dia, foou, fa, zaa, et, eght, no, tha

Language 1a2b2: Coda obstruents back to velars
[oː suː deɡˈɖʐeː fuɡˈɖʐuː faː zaː zoː ɛk noː saː]
o, su, degdhe, fugdhu, fa, za, zoa, eac, no, sa

Language 1b: /aːw/ becomes an overlong vowel /ɔːː/
[pa tʰu heː hɔː haː saːkʰ hɔːː ax nwa ha]
woa, tou, hei, hoor, hach, saex, seavn, agh, noa, hea

Language 2a: Dissimilation of two vowels of the same frontness in one word
[õˈɡɛ ɬi zuˈɻi vɛ vav zɛk zɛn hɛt ãˈdɛ ɬɛ]
gne, thew, thrie, voar, vaav, seck, sevn, height, neghn, seghn

Language 2b: /n/ added to "10" by analogy with "9"
[baː iː ɕiː ˈbœː ˈbaːfi ˈsɛtɛ ˈseːbni ˈɛtɛ naː neː]
baa ii shii boae baayf seat seebn eat naay nee

Language 1a1a: High mid vowels lower when not next to a coronal
[wuː çyː ʒiː xyː xœːw soːj søːj oːt nuː fɔː]
wuu, hyy, xyy, xoew, sooj soij oot nuu foa

Language 1a1b: Coda semivowels lost raising the previous vowel
[juː çau ɟiː fuː fif sɔu̯ks syː jɔu̯t nu kʷɛ]
juu, hyau, djii, fuu, fif, souks, syy, jout, nu, kwe

Language 1a2a: *e > *o next to coronals
[wa su zoː fyː fəː ziː zo ot ma so]
wa, su, zoo, fyy, feu, zii, zo, ot, ma, so

Language 1a2b1: Vowel shift *æ: > *ɛ: > *e:
[o su dja fuː fæ zɛː eːt ɛt no sæ]
o, su, dya, fu, fea, zea, eet, et, no, sae

Language 1a2b2: Vowel initial words acquire a prophetic *j
[joː suː deɡˈɖʐeː fuɡˈɖʐuː faː zaː zoː jɛk noː saː]
jo, su, deg, dre, fug, dru, fa, za, zo, jeak, no, sa

Language 1b: *u > *ʌ after an alveolar
[pa tʰʌ heː hɔː haː saːkʰ hɔːː ax nwa ha]
pa, thu, he, hoa, ha, sak, hoao, ax, nwa, ha

Language 2a: *ɛ becomes *e which is blocked by a coda obstruent or an onset voiceless fricative
[õˈɡe ɬi zuˈɻi ve vav zɛk zen hɛt ãˈdɛ ɬɛ]
gne, thew, thrie, voar, vaav, seck, sevn, height, neghn, seghn

Language 2b1: Great vowel shift
[be: iː ɕaj ˈbyː ˈbeːfi ˈsɛtɛ ˈsi:bni ˈɛtɛ ne: niː]
baa ii shii boae baayf seat seebn eat naay nee

Language 2b2: *e: > *ɛ: > *a: > *ɔ: > *o: > *u: > *ɨ:
[bɔː iː ɕiː ˈbœː ˈbɔːfi ˈsɛtɛ ˈsɛːbni ˈɛtɛ nɔː nɛː]
baa ii shii boae baayf seat seebn eat naay nee

[Rounin Ryuuji]

Language 1-1: [x s] > [ʃ] before front vowels, radical spelling changes abandoned:
[wuː çyː ʒiː ʃyː xœːw soːj ʃøːj oːt nuː fɔː]
woun, thewr, dreir, fewr, foav, soar, soavr, oaght, noun, thoan

Language 1-2: :[au] > [ɔu̯], radical spelling changes abandoned in large part, though a few changes are made:
[juː çɔu̯ ɟiː fuː fif sɔu̯ks syː jɔu̯t nu kʷɛ]
youn, theow, dreir, fou, feir, sowx, soavr, yowght, noun, kwair

Language 1-3: [əː] > [eː], radical spelling changes abandoned, but some of the vowel spellings are updated, or influenced by language 1-1:
[wa su zoː fyː feː ziː zo ot ma so]
waan, thouw, soaw, foavr, fair, seirg, soan, oaght, maan, soan

Language 1-4: Vowel chain shift, [æ ɛ e] > [ɛ ja i], the "correction" orthographies of other languages in Group 1 spreads to this variety:
[o su dja fuː fɛ zjaː iːt jat no sɛ]
woan, thouw, dra, fou, fer, zraa, ieght, yaght, noan, then

Language 1-5: Deletion of unstressed initial syllables, orthographic influences spread, as above:
[joː suː ɖʐeː ɖʐuː faː zaː zoː jɛk noː saː]
yoan, thou, drair, drou, faav, saax, soav, yegh, noan, thaan

Language 1-6: [ʌ] > [a], orthographic influences spread, as above:
[pa tʰa heː hɔː haː saːkʰ hɔːː ax nwa ha]
paan, thuo, thrair, throa, faav, saax, throa, aght, nwaan, thraan

Language 2-1: [ɬ] > [ɕ] before high front vowels, [ʃ] elsewhere, influence of Continental Orthography:
[õˈɡe ɕi zuˈɻi ve vav zɛk zen hɛt ãˈdɛ ʃɛ]
gne, seir, zuri, vair, vaav, zeck zern, heght, nden, sren

Language 2-2: Loss of terminal vowels; influence of Continental Orthography, as above:
[be: iː ɕaj ˈbyː ˈbeːf ˈsɛt ˈsi:bni ˈɛt ne: niː]
bair, yir, sraai, boavr, bairf, set, seirbn, eght, nairn, neirn

Language 2-3: Terminal vowel loss and convention-spreading, as above.
[bɔː iː ɕiː ˈbœː ˈbɔːf ˈsɛt ˈsɛːbn ˈɛt nɔː nɛː]
boan, yir, shir, beow, boaf, set, sebn. eght naan nairn

[foxcatdog]

Language 1-1: [x s] > [ʃ] before front vowels, radical spelling changes abandoned:
[wuː çyː ʒiː ʃyː xœːw soːj ʃøːj oːt nuː fɔː]
woun, thewr, dreir, fewr, foav, soar, soavr, oaght, noun, thoan

Language 1-2: :[au] > [ɔu̯], radical spelling changes abandoned in large part, though a few changes are made:
[juː çɔu̯ ɟiː fuː fif sɔu̯ks syː jɔu̯t nu kʷɛ]
youn, theow, dreir, fou, feir, sowx, soavr, yowght, noun, kwair

Language 1-3: [əː] > [eː], radical spelling changes abandoned, but some of the vowel spellings are updated, or influenced by language 1-1:
[wa su zoː fyː feː ziː zo ot ma so]
waan, thouw, soaw, foavr, fair, seirg, soan, oaght, maan, soan

Language 1-4: Vowel chain shift, [æ ɛ e] > [ɛ ja i], the "correction" orthographies of other languages in Group 1 spreads to this variety:
[o su dja fuː fɛ zjaː iːt jat no sɛ]
woan, thouw, dra, fou, fer, zraa, ieght, yaght, noan, then

Language 1-5: Deletion of unstressed initial syllables, orthographic influences spread, as above:
[joː suː ɖʐeː ɖʐuː faː zaː zoː jɛk noː saː]
yoan, thou, drair, drou, faav, saax, soav, yegh, noan, thaan

Language 1-6: [ʌ] > [a], orthographic influences spread, as above:
[pa tʰa heː hɔː haː saːkʰ hɔːː ax nwa ha]
paan, thuo, thrair, throa, faav, saax, throa, aght, nwaan, thraan

Language 2-1: [ɬ] > [ɕ] before high front vowels, [ʃ] elsewhere, influence of Continental Orthography:
[õˈɡe ɕi zuˈɻi ve vav zɛk zen hɛt ãˈdɛ ʃɛ]
gne, seir, zuri, vair, vaav, zeck zern, heght, nden, sren

Language 2-2: Loss of terminal vowels; influence of Continental Orthography, as above:
[be: iː ɕaj ˈbyː ˈbeːf ˈsɛt ˈsi:bni ˈɛt ne: niː]
bair, yir, sraai, boavr, bairf, set, seirbn, eght, nairn, neirn

Language 2-3: Terminal vowel loss and convention-spreading, as above.
[bɔː iː ɕiː ˈbœː ˈbɔːf ˈsɛt ˈsɛːbn ˈɛt nɔː nɛː]
boan, yir, shir, beow, boaf, set, sebn. eght naan nairn

You know if you change them to just 2-3 or such its harder to keep track of their ancestry?

[Darren]

Language 1a1a: No changes
[wuː çyː ʒiː ʃyː xœːw soːj ʃøːj oːt nuː fɔː]
woun, thewr, dreir, fewr, foav, soar, soavr, oaght, noun, thoan

Language 1a1b: Onset /j/ > /ɟ/
[ɟuː çɔu̯ ɟiː fuː fif sɔu̯ks syː ɟɔu̯t nu kʷɛ]
youn, theow, yeir, fou, feir, sowx, soavr, yowght, noun, kwair

Language 1a2a: Echo vowels inserted after codas
[wa su zoː fyː feː ziː zo ˈoto ma so]
waan, thouw, soaw, foavr, fair, seirg, soan, oaght, maan, soan

Language 1a2b1: /iː uː/ > /ik uk/
[o su dja fuk fɛ zjaː ikt jat no sɛ]
woan, thouw, dra, fou, fer, zraa, ieght, yaght, noan, then

Language 1a2b2: Codas metathesise into onset
[joː suː ɖʐeː ɖʐuː faː zaː zoː jkɛ noː saː]
yoan, thou, drair, drou, faav, saax, soav, yegh, noan, thaan

Language 1b: Long and overlong vowels merge; "7" is replaced with a compound "6-1" due to subsequent homophony with "4"
[pa tʰa heː hɔː haː saːkʰ ˈsaːkʰpa ax nwa ha]
paan, thuo, thrair, throa, faav, saax, saaxpaan, aght, nwaan, thraan

Language 2a: Stress shifts to initial syllable
[ˈõɡe ɕi ˈzuɻi ve vav zɛk zen hɛt ˈãdɛ ʃɛ]
gne, seir, zuri, vair, vaav, zeck zern, heght, nden, sren

Language 2b1: /bn/ > /bl/
[beː iː ɕaj byː beːf sɛt ˈsiːbli ɛt neː niː]
bair, yir, sraai, boavr, bairf, set, seirbn, eght, nairn, neirn

Language 2b2: Metathesis of coda /n/, which then spreads to 6
[bɔː iː ɕiː bœː bɔːf snɛt snɛːb ɛt nɔː nɛː]
boan, yir, shir, beow, boaf, snet, sneab, eght, naan, nean

[foxcatdog]

Language 1a1a: No changes
[wuː çyː ʒiː ʃyː xœːw soːj ʃøːj oːt nuː fɔː]
woun, thewr, dreir, fewr, foav, soar, soavr, oaght, noun, thoan

Language 1a1b: Onset /j/ > /ɟ/
[ɟuː çɔu̯ ɟiː fuː fif sɔu̯ks syː ɟɔu̯t nu kʷɛ]
youn, theow, yeir, fou, feir, sowx, soavr, yowght, noun, kwair

Language 1a2a: Echo vowels inserted after codas
[wa su zoː fyː feː ziː zo ˈoto ma so]
waan, thouw, soaw, foavr, fair, seirg, soan, oaght, maan, soan

Language 1a2b1: /iː uː/ > /ik uk/
[o su dja fuk fɛ zjaː ikt jat no sɛ]
woan, thouw, dra, fou, fer, zraa, ieght, yaght, noan, then

Language 1a2b2: Codas metathesise into onset
[joː suː ɖʐeː ɖʐuː faː zaː zoː jkɛ noː saː]
yoan, thou, drair, drou, faav, saax, soav, yegh, noan, thaan

Language 1b: Long and overlong vowels merge; "7" is replaced with a compound "6-1" due to subsequent homophony with "4"
[pa tʰa heː hɔː haː saːkʰ ˈsaːkʰpa ax nwa ha]
paan, thuo, thrair, throa, faav, saax, saaxpaan, aght, nwaan, thraan

Language 2a: Stress shifts to initial syllable
[ˈõɡe ɕi ˈzuɻi ve vav zɛk zen hɛt ˈãdɛ ʃɛ]
gne, seir, zuri, vair, vaav, zeck zern, heght, nden, sren

Language 2b1: /bn/ > /bl/
[beː iː ɕaj byː beːf sɛt ˈsiːbli ɛt neː niː]
bair, yir, sraai, boavr, bairf, set, seirbn, eght, nairn, neirn

Language 2b2: Metathesis of coda /n/, which then spreads to 6
[bɔː iː ɕiː bœː bɔːf snɛt snɛːb ɛt nɔː nɛː]
boan, yir, shir, beow, boaf, snet, sneab, eght, naan, nean

Language 1a1a: Front rounded vowels unround transferring their labialisation on the following consonant
[wɯː çʷiː ʒiː ʃʷiː xʷɛːw sʷoːj ʃʷeːj woːt nʷɯː fʷɔː]
woun, thewr, dreir, fewr, foav, soar, soavr, oaght, noun, thoan

Language 1a1b: Codas eliminated
[ɟuː çɔu̯ ɟiː fuː fi sɔu̯ syː ɟɔu̯ nu kʷɛ]
youn, theow, yeir, fou, feir, sowx, soavr, yowght, noun, kwair

Language 1a2a: *w > *m
[ma su zoː fyː feː ziː zo ˈoto ma so]
wa, thouw, soaw, foavr, fair, seirg, soan, oaght, maan, soan

Language 1a2b1: *u > *ʌ except when next to a labial
[o sʌ dja fuk fɛ zjaː ikt jat no sɛ]
woan, thouw, dra, fou, fer, zraa, ieght, yaght, noan, then

Language 1a2b2: Onset clusters acquire epenthetic *i’s
[joː suː ɖiʐeː ɖiʐuː faː zaː zoː jikɛ noː saː]
yoan, thou, drair, drou, faav, saax, soav, yegh, noan, thaan

Language 1b: Speakers get tired of the extreme homophony between three, four and five and replace them. In the meantime aspirated stops fricate
[pa θa θapa hɔː pasaːx saːx ˈsaːxpa ax nwa ha]
pa, þa, ðapa, hoae, pasach, saach, sakhpa, ach, nwa, ha

Language 2a: Rounding harmony followed by vowel loss
[ˈɤ̃ɡ ɕi ˈzɯɻ ve vav zɛk zen hɛt ˈãd ʃɛ]
oeng, shi, zuir, ve, va, zek, zen, het, and

Language 2b1: Speakers replace the word for ten with the word for hands
[beː iː ɕaj byː beːf sɛt ˈsiːbli ɛt neː kɛnd]
bair, yir, sraai, boavr, bairf, set, seirbn, eght, nairn, kend

Language 2b2: *sn > *ɬ
[bɔː iː ɕiː bœː bɔːf ɬɛt ɬɛːb ɛt nɔː nɛː]
boan, yir, shir, beow, boaf, snet, sneab, eght, naan, nean
[/quote]

[foxcatdog]

Lets see what you can do with proto polynesian. I think I put too many things to change on my last suggestion. These are the numerals from 1-10.
[ˈta.si ˈɾu.a ˈto.lu ˈfa: ˈli.ma ˈo.no ˈfi.tu ˈwa.lu ˈhi.wa ha.ŋaˈfu.lu]

Northwest: Chain shift of *l > *s > *t > *c
[ˈca.ti ˈɾu.a ˈco.su ˈfa: ˈsi.ma ˈo.no ˈfi.cu ˈwa.su ˈhi.wa ha.ŋaˈfu.su]

East: *h > *s before front vowels
[ˈta.si ˈɾu.a ˈto.lu ˈfa: ˈli.ma ˈo.no ˈfi.tu ˈwa.lu ˈsi.wa ha.ŋaˈfu.lu]

South: *t > *s after and *i or in stressed syllables
[ˈsa.si ˈɾu.a ˈso.lu ˈfa: ˈli.ma ˈo.no ˈfi.su ˈwa.lu ˈhi.wa ha.ŋaˈfu.lu]

[Rounin Ryuuji]

Northwest: Fortition of non-sibilant fricatives to voiceless aspirate stops:
[ˈca.ti ˈɾu.a ˈco.su ˈpʰa: ˈsi.ma ˈo.no ˈpʰi.cu ˈwa.su ˈkʰi.wa kʰa.ŋaˈpʰu.su]
kyati, rua, tyosu, phâ, sima, ono, phityu, wasu, khiwa, khaga, phusu

East: [f s] merge to [ç] before [i]
[ˈta.çi ˈɾu.a ˈto.lu ˈfa: ˈli.ma ˈo.no ˈçi.tu ˈwa.lu ˈçi.wa ha.ŋaˈfu.lu]
tahyi, rua, tolu, fâ, lima, ono, hyitu, walu, hyiwa, haga, fulu

South: [l] > [j] before [i]
[ˈsa.si ˈɾu.a ˈso.lu ˈfa: ˈji.ma ˈo.no ˈfi.su ˈwa.lu ˈhi.wa ha.ŋaˈfu.lu]
sasi, rua, solu, fâ, yima, ono, fisu, walu, hiwa, haga, fulu

[foxcatdog]

Northwest: *c becomes *ʃ before high vowels and *tʰ elsewhere
[ˈtʰa.ti ˈɾu.a ˈtʰo.su ˈpʰa: ˈsi.ma ˈo.no ˈpʰi.ʃu ˈwa.su ˈkʰi.wa kʰa.ŋaˈpʰu.su]
thati, rua, thsu, phâ, sima, ono, phisyu, wasu, khiwa, khaga, phusu

East: *ɾ > *t when initial
[ˈta.çi ˈtu.a ˈto.lu ˈfa: ˈli.ma ˈo.no ˈçi.tu ˈwa.lu ˈçi.wa ha.ŋaˈfu.lu]
tahyi, tua, tolu, fâ, lima, ono, hyitu, walu, hyiwa, hagafulu

South1: Chainshift of *ɾ > *w > *j
[ˈsa.si ˈwu.a ˈso.lu ˈfa: ˈji.ma ˈo.no ˈfi.su ˈja.lu ˈhi.ja ha.ŋaˈfu.lu]
sasi, wua, solu, fâ, yima, ono, fisu, yalu, hiya, haga, fulu

South2: *ɾ > *t
[ˈsa.si ˈtu.a ˈso.lu ˈfa: ˈji.ma ˈo.no ˈfi.su ˈwa.lu ˈhi.wa ha.ŋaˈfu.lu]
sasi, tua, solu, fâ, yima, ono, fisu, walu, hiwa, hagafulu