Where does “ꙗзъ” come from?

ꙗзъ (Old Church Slavonic) comes from Proto-Slavic (j)azъ, from Proto-Balto-Slavic ēź-, from Proto-Indo-European éǵh₂ — I.

Ancestry of “ꙗзъ”, step by step

StepLanguageWordMeaning
1Proto-Slavic(j)azъI
2Proto-Balto-Slavicēź-—
3Proto-Indo-Europeanéǵh₂I

Words derived from “ꙗзъ”

Every word from Proto-Indo-European éǵh₂ →Every word from Proto-Balto-Slavic ēź- →Every word from Proto-Slavic (j)azъ →