Proto-West-Caucasian: *č́ǝ
Meaning: 1 udder 2 milk
Abkhaz: á-č́-rǝgʷ 1
Abaza: č́ǝ 1
Ubykh: č́a 2
Comments: PAT *č́ǝ (the Abkh. form is a compound with -gʷǝ 'middle, heart' and a connecting morpheme -rǝ-). Some comments on the Ub. form see also under *ƛǝ.