Word evolution game

[Travis B.]

[ʟ̞] > [w]

[sɛ́ːw.tsòː]

[Rounin Ryuuji]

[ɛ́ːw] > [ǿːɥ]

[sǿːɥ.tsòː]

[Raholeun]

Anticipatory assimilation of the onset

[tsǿːɥ.tsòː]

[foxcatdog]

Anticipatory assimilation of the onset

[tsǿːɥ.tsòː]

Quite a change from [par.tʰe.nɔ̌ːn]

Anyways...
['kæ.tə.ri.nə]

[Raholeun]

Stress shift to the antepenult, with secondary stress on all subsequent alternating syllables

[kæ.ˈtə.ri.ˌnə]

[Zju]

Unstressed syllables are reduced:

[kə.ˈtə.rɨ.ˌnə]

[Travis B.]

Stressed vowels are tensed.

[kə.ˈta.rɨ.ˌna]

[Jonlang]

A-affection - syllables containing a high vowel, preceding final /a/ are fronted and lowered.

[kə.ˈta.re.ˌna]

[Rounin Ryuuji]

A satemisation-like chain shift of [ʔ k tʃ t] > [k tʃ t ts], only some of which is represented here.

[tʃə.ˈtsa.re.ˌna]

[Zju]

lenition

[t͡ʃə.ˈd͡za.re.ˌna]

[Rounin Ryuuji]

Schwa loss with voicing assimilation:

['dʒd͡za.re.ˌna]

[Zju]

Initial cluster simplification (d͡ʒd͡z → ʒd͡z → zd͡z):

['zd͡za.re.na]

[Znex]

Pre-nasal vowel raising (e -> i / _N)

['zd͡za.ri.na]

[Rounin Ryuuji]

Metathesis:

['d͡zːa.ri.na]

[Travis B.]

Geminate reduction.

['d͡za.ri.na]

[Zju]

Reduction of /a/ in unstressed syllables:

['d͡za.ri.nɐ]

[Rounin Ryuuji]

Loss of intervocalic [r] before front vowels.

['d͡zai.nɐ]

[Zju]

Lexified reduplication:

[d͡zai.'d͡zai.nɐ]

[Rounin Ryuuji]

Rhotacism:

[dʁai.'dʁai.nɐ]

(Also, why is there reduplication in a personal name?)

[Raholeun]

(Also, why is there reduplication in a personal name?)

Reduplication and personal names go hand in hand, I would say. As given names, there are Mimi and Kiki and thinking of nicknames Marky Mark comes to mind.

But, to continue with a sound change where stressed diphthongs become long monophthongs:

[dʁai.'dʁɛ:.nɐ]