Comment: Cf. also Tab. Düb. gun xus. The word belongs to the weak class in PL. In Tsakhur the terminative stem is reduplicated (cf. aor. ɨk:ɨjk:ɨn etc.). Rut., Tsakh. and Ud. reflect the Ablaut grade *-o-. Several languages (Lezg., Tab., Ag., Arch.) have a defective paradigm, reflecting only the stem *ʔiƛ̣:an (with initial reduction), either in a participial or finite (pres. ƛ̣:an in Arch.) function.
See Бокарев 1961, 75; Лексика 1971, 253; Гигинейшвили 1977, 111.