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 hʷ w shifted to f v.

Thus the consonant inventory was

Rounded bilabials: pʷ bʷ Bilabials: p b m f v Alveolars: t d n s l Postalveolars: č ǯ ň š ł Palatals: ć y Prevelars: c̀ Velars: k ġ ŋ x g Labiovelars: kʷ ġʷ xʷ gʷ Uvulars: q h Rounded uvulars: qʷ

The vowel system was that of Gold: /a i u ə/. There were two tones and vowels could be short or long. Unlike Gold, long schwa was permitted and was fairly common.

             PLAIN                      LABIALIZED

Bilabials:       p   b   m   f   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/.