Word evolution game

[Man in Space]

Intervocalic *v lost before back vowels

[cɐ.u.cɐ]
chavúcha
(v.) "age, decline with age"
(v.) (by extension) "become dated, fade from popularity"
(v.) (by extension) "expire, spoil, go flat, go bad, overripen"
(v.) (now literary) "weather, erode, wear down"

[Rounin Ryuuji]

[c] > [ʃ]

[ʃɐ.u.ʃɐ]
chaucha
(v.) "age, decline with age"
(v.) (by extension) "become dated, fade from popularity"
(v.) (by extension) "expire, spoil, go flat, go bad, overripen"
(v.) (now literary) "weather, erode, wear down"

[Man in Space]

Terminal reduced vowels > i

[ʃɐ.u.ʃi]
chaucha
(v.) "age, decline with age"
(v.) (now ironic) "become dated, fade from popularity"
(v.) "expire, spoil, go flat, go bad, overripen"
(v.) (literary) "weather, erode, wear down"

[Rounin Ryuuji]

[au] collapses to [oː]

[ʃoːʃi]
shôshi
(v.) "expire, spoil, go flat, go bad, overripen"
(v.) (now common as an extension of the above sense) "become dated, fade from popularity"
(v.) (by extension) (slang) "be cringey, be embarrassingly out of touch"
(v.) (old-fashioned) "age, decline with age"
(v.) (literary) "weather, erode, wear down"

[foxcatdog]

*ʃ fortites initially
[tʃoːʃi]
shôshi
(v.) "expire, spoil, go flat, go bad, overripen"
(v.) (now common as an extension of the above sense) "become dated, fade from popularity"
(v.) (by extension) (slang) "be cringey, be embarrassingly out of touch"
(v.) (old-fashioned) "age, decline with age"
(v.) (literary) "weather, erode, wear down"

[Man in Space]

Ubykhization

[tʃʷəːʃɨ]
shôshi
(v.) "expire, spoil, go flat, go bad, overripen"
(v.) (now a self-demonstrating example) "become dated, fade from popularity"
(v.) (by extension) (slang) "be cringey, be embarrassingly out of touch"
(v.) (pejorative) "age, decline with age"

[Rounin Ryuuji]

Vowel assimilation:

[tʃʷɨːʃɨ]
shôshi
(v.) "expire, spoil, go flat, go bad, overripen"
(v.) (now a self-demonstrating example) "become dated, fade from popularity"
(v.) (by extension) (slang) "be cringey, be embarrassingly out of touch"
(v.) (pejorative) "age, decline with age"

[Travis B.]

Vowel assimilation to consonants.

[tʃʷyːʃɨ]
shôshi
(v.) "expire, spoil, go flat, go bad, overripen"
(v.) (now a self-demonstrating example) "become dated, fade from popularity"
(v.) (by extension) (slang) "be cringey, be embarrassingly out of touch"
(v.) (pejorative) "age, decline with age"

[Rounin Ryuuji]

Alveopalatals become full palatals (with labialisation assimilating) before front vowels, retroflexes elsewhere

[cɕᶣyːʂɨ]
chûszi

(v.) (pejorative) "die"
(v.) (now dated) "expire, spoil, go flat, go bad"
(v.) (now dated) "become dated, fade from popularity"
(v.) (now dated) "be cringey, be embarrassingly out of touch
(v.) (now dated) (pejorative) "age, decline with age"

[foxcatdog]

*ʂ voices between vowels

[cɕᶣyːʐɨ]
chûszi

(v.) (pejorative) "die"
(v.) (now dated) "expire, spoil, go flat, go bad"
(v.) (now dated) "become dated, fade from popularity"
(v.) (now dated) "be cringey, be embarrassingly out of touch
(v.) (now dated) (pejorative) "age, decline with age"

[Rounin Ryuuji]

Rhotacism:

[cɕᶣyːɻɨ]
chûszi

(v.) (pejorative) "die"
(v.) (pejorative) "kill, off"
(v.) (pejorative) (of bombs) "explode, go off"

[Travis B.]

Backing of rhotics.

[cɕᶣyːʁɨ]
chûri

(v.) (pejorative) "die"
(v.) (pejorative) "kill, off"
(v.) (pejorative) (of bombs) "explode, go off"

[Rounin Ryuuji]

[yː] > [ɥiː]

[cɕᶣɥiːʁɨ]
chûri

(excl.) (vulgar) "fuck you, fuck off"
(v.i.) (vulgar) "die"
(v.i.) (vulgar) (of bombs) "explode, go off"
(v.t.) (vulgar) "kill, off, do in"
(v.t.) (vulgar) (of bombs, temper) "set off, detonate"
(v.t.) (vulgar) (by extension) "cum, ejaculate"

[foxcatdog]

*ɥ fortites

[cɕᶣçiːʁɨ]
chûri

(excl.) (vulgar) "fuck you, fuck off"
(v.i.) (vulgar) "die"
(v.i.) (vulgar) (of bombs) "explode, go off"
(v.t.) (vulgar) "kill, off, do in"
(v.t.) (vulgar) (of bombs, temper) "set off, detonate"
(v.t.) (vulgar) (by extension) "cum, ejaculate"

[Rounin Ryuuji]

Cluster simplification [cɕᶣç] > [cçᶣ]

[cçᶣiːʁɨ]
cuîri

(excl.) (vulgar) "fuck you, fuck off"
(v.i.) (vulgar) "die"
(v.i.) (vulgar) (of bombs) "explode, go off"
(v.t.) (vulgar) "kill, off, do in"
(v.t.) (vulgar) (of bombs, temper) "set off, detonate"
(v.t.) (vulgar) (by extension) "cum, ejaculate"

[Man in Space]

*iː > ɘɐ̯ / %ɨ (also correcting the modifier because /cç/ is about as palatal as you can go)

[cçʷɘɐ̯ʁɨ]
cuîri

(excl.) (vulgar) "fuck you, fuck off"
(v.i.) (vulgar) "die"
(v.i.) (vulgar) (of bombs) "explode, go off"
(v.t.) (vulgar) "kill, off, do in"
(v.t.) (vulgar) (of bombs, temper) "set off, detonate"
(v.t.) (vulgar) (by extension) "cum, ejaculate"

[Rounin Ryuuji]

Labialisation resolves onto the following vowels:

[cçɵɔ̯.ʁɨ]
kieory

(excl.) (vulgar) "fuck you, fuck off"
(v.i.) (vulgar) "die"
(v.i.) (vulgar) (of bombs) "explode, go off"
(v.t.) (vulgar) "kill, off, do in"
(v.t.) (vulgar) (of bombs, temper) "set off, detonate"
(v.t.) (vulgar) (by extension) "cum, ejaculate"

[Travis B.]

[cç] > [tɕ]

[tɕɵɔ̯.ʁɨ]
kieory

(excl.) (vulgar) "fuck you, fuck off"
(v.i.) (vulgar) "die"
(v.i.) (vulgar) (of bombs) "explode, go off"
(v.t.) (vulgar) "kill, off, do in"
(v.t.) (vulgar) (of bombs, temper) "set off, detonate"
(v.t.) (vulgar) (by extension) "cum, ejaculate"

[Man in Space]

ʁ > ʢ

[tɕɵɔ̯.ʢɨ]
kieory

(excl.) (vulgar) "fuck you, fuck off"
(v.i.) (vulgar) "die"
(v.i.) (vulgar) (of bombs) "explode, go off"
(v.t.) (vulgar) "kill, off, do in"
(v.t.) (vulgar) (of bombs, temper) "set off, detonate"
(v.t.) (vulgar) (by extension) "cum, ejaculate"

[foxcatdog]

[tɕɵɔ̯.ʢɨ]
kieory

Is somewhat of a change from

[gɾvɵ̌ʢgɐ]
grvóxga


Anyways
[tsɯ̟̊ᵝkɯ̟ᵝjomi]
tsukuyomi
つくよみ