Kava/sound changes

Proto-Subumpamese (???) to Proto-Kava (1900)

1. The schwas ə ə̄ shifted to u ū.
2. The mid vowels e o rotated to i ə.
3. The high vowel i shifted to ə if touching a /q/ in either direction.
4. Primordial f shifted to p .
5. Primordial w shifted to v.

Thus the consonant inventory was

             PLAIN                      LABIALIZED

Bilabials:       p   b   m       v          pʷ  bʷ  mʷ       
Alveolars:       t   d   n   s   l          tʷ  dʷ  nʷ   
Postalveolars:   č   ǯ   ň   š   ł           
Palatals:        ć       ń       y
Prevelars:       c̀       ǹ
Velars:          k   ġ   ŋ   x   g          kʷ  ġʷ  ŋʷ  xʷ
Postvelars:      q           h              qʷ           

There may have also been a /gʷ/, likely shifting to [w] as /w/ shifted to /v/.