Комментарии:KW 130, Владимирцов 321, Poppe 60, Колесникова 1972а, 92-93, Дыбо 307, Лексика 240. A Western isogloss. Despite Щербак 1997, 114, Mong. is not < Turk. May be derived from *ĕgi 'to bend' q. v. Doerfer (TMN 2, 192) protests against the Turk.-Mong. comparison, but restricts himself to "einigen grundsätzlichen Bemerkungen" (a loan theory would have to explain Turk. *-n > Mong. -m).
