Where does “зьꙗти” come from?

зьꙗти (Old East Slavic) comes from Proto-Slavic zijati, from Proto-Balto-Slavic źiāˀ-, from Proto-Indo-European ǵʰh₁i-eh₂-, from Proto-Indo-European ǵʰeh₁y-, from Proto-Indo-European ǵʰih₁-.

Ancestry of “зьꙗти”, step by step

StepLanguageWordMeaning
1Proto-Slaviczijatito gape, to be wide open
2Proto-Balto-Slavicźiāˀ-—
3Proto-Indo-Europeanǵʰh₁i-eh₂-to gape, be wide open
4Proto-Indo-Europeanǵʰeh₁y-to yawn, gape; to gape, be wide open; to gape,...
5Proto-Indo-Europeanǵʰih₁-—
Every word from Proto-Indo-European ǵʰih₁- →Every word from Proto-Indo-European ǵʰeh₁y- →Every word from Proto-Indo-European ǵʰh₁i-eh₂- →