Comments:VEWT 272, TMN 3, 664-665, EDT 752, Щербак 1961, 143, ЭСТЯ 5, 77-78, Лексика 162-163, Stachowski 149 (one of the Turk.-Samoyed. contact words; because of the Tungus parallel, probably Turk. > Samoyed., despite Helimski 1995). The Chuvash form reveals irregular vocalism and may in fact reflect a merger with PT *Küĺül 'rat, mole' (v. sub *k`ĕ̀ĺú). Turk. > Mong. er-kis 'male sable', ebsi-gis 'female sable' (see Clark 1980, 43).