Proto-West-Caucasian: *nǝč́ǝ
Meaning: a ram slaughtered in honor of the guest
Adyghe: nǝš́ǝ
Kabardian: nǝš
Ubykh: nǝč́ǝ́
Comments: The Ub. form corresponds to PAK quite regularly, and there are no reasons to suppose a loan (despite Shagirov 1977). Judging from the external evidence, the root must have originally meant "a two-year-old ram, a grown-up ram".