Where does “(j)esmь” come from?
(j)esmь (Proto-Slavic) comes from Proto-Balto-Slavic esmi, from Proto-Indo-European h₁ésmi, from Proto-Indo-European h₁ēs- — to be.
(j)esmь (Proto-Slavic) comes from Proto-Balto-Slavic esmi, from Proto-Indo-European h₁ésmi, from Proto-Indo-European h₁ēs- — to be.