Where does “բորեակ” come from?

բորեակ (Old Armenian) comes from Old Armenian բորի, from Middle Iranian bōr-.

Ancestry of “բորեակ”, step by step

Step	Language	Word	Meaning
1	Old Armenian	բորի	brown, dark-complexioned animal
2	Middle Iranian	bōr-	—

բորեակ — Etymology, Origin & Word History | Etymology Explorer