Proto-Tsezian: *k[ɨ]s:ʷ- / -š:ʷ-
Meaning: 1 to mow 2 to shear, clip
Tsezi: kos- 1
Bezhta: kus-uʔ- 2 (Tlad.)
Gunzib: koš- 1
Comments: PGB *kuš- / *koš-. The root reveals a variation u/o (pointing to lost consonant labialisation) and *s:/*š: (typical for reflexes of PEC palatal sibilants).