Comment: Cf. also Lezg. pret. tu-na; Ag. Bursh. ata-. It is not quite clear why Lezgian had lost the initial vowel; perhaps it reflects (like Tab. -it-) the PL *-i- Ablaut grade. The verb belongs to the strong verb class.
See Бокарев 1961, 62; Лексика 1971, 257; Гигинейшвили 1977, 80.