Comment: Obl. vowel base unclear (in many languages only the original plural form 'teeth' is preserved and passed into singular, thus in Tab., Ag., Rut. and. Ud.). For PL *-l: cf. Arch. sot, pl. sot:-or (where -t:- < *-l:-). Belongs to the 4th class in all class-distinguishing languages.
See Лексика 1971, 111; Гигинейшвили 1977, 70; Талибов 1980, 295.
