Where does “hoskíyā” come from?

hoskíyā (Proto-Armenian) comes from Proto-Indo-European Hh₃os-k-yeh₂-, from Proto-Indo-European Heh₃s- — ash tree.

Ancestry of “hoskíyā”, step by step

Step	Language	Word	Meaning
1	Proto-Indo-European	Hh₃os-k-yeh₂-	—
2	Proto-Indo-European	Heh₃s-	ash tree

hoskíyā — Etymology, Origin & Word History | Etymology Explorer