- The Ashanic Vowel Shift: A chain vowel shift ä > a > o > u > ü. Exception: -aʔ became -a, not -o.
- Shift to strong final stress.
- An associative plural *φam which could be used after a noun.
- A 4-tense system of past, present, future and imperative/subjunctive.
- A full set of personal pronouns, with an associative plural suffix in the 2nd and 3rd person plural and a grammaticalization of *θʔiisa 'this side' for 1st person exclusive.
- Retains preposed possessive pronouns. (Classical Windermere had those; Ciêng still does this for family members.)
|Nasal||m /m/||n /n/||ŋ /ŋ/|
|Stop||plain||p /p/||t /t/||k /k/||ʔ /ʔ/|
|voiced||b /b/||d /d/||g /g/|
|Fricative||s /s̻/||ś /s̺/||š /ʃ/||h /h/|
|Affricate||c /ts̻/||ć /ts̺/||(č /tʃ/)|
|Approximant||w /w/||l /l/||r /r/||y /j/|
Proto-Ashanic had 6 vowels and register tone:
i ü u e o a = /i y u e o a/
ì ǜ ù è ò à = /i y u e o a/ + breathy voice
Final consonant clusters were allowed, unlike in Windermere; they are the source of final voiced stops in Windermere.
Prefinal syllables only allowed the vowels /a i u/.
Stress was likely on the final syllable.