←
Proto-Indo-European *eno- (derived)←
Proto-Indo-European *ono- (mention)←
Proto-Indo-European *no- (mention)←
Proto-Indo-European *h₁es- (derived)←
Proto-Slavic *jь (inherited)←
Proto-Slavic *ja (mention)←
Proto-Slavic *je (mention)←
Proto-Slavic *estь (derived)