Протонахский: *sō
Значение: I
Чеченский: so
Ингушский: so
Бацбийский: so
Комментарии: The PN paradigm is *sō (nom.), *sa- (gen., cf. Chech. sa-n, Bacb. sa-jĩ), *ʔas (erg., cf. Chech. as, Ing. az). The length in *sō is regularly shortened, but has been preserved in derivate forms like *sō-nu (dat.) > Chech. sū-na.
