Comment: Cf. also Lezg. Khl. c:ʷar, Tsakh. Gelm. zojä (the Tsakh. Tsakh. and Mik. form zej is a later contraction). Obl. stem *c:ʷerä-, cf. Gelm. zojä, Tab. ǯ̌ura-, Ag. zura-/zuri-, Rut. zurú-). 4th class in all class-distinguishing languages. Arch. co=ḳa- (dur. co=ḳu-r) 'to urinate' is an old compound *c:ʷera + *ʔeḳʷɨ- ('*to put urine') > *c:ʷerḳʷɨ- > co=ḳa- (with regular loss of medial -r-).