Where does “աչք” come from?

աչք (Old Armenian) comes from Proto-Indo-European h₃(o)kʷih₁.

աչք (Old Armenian): eyes; sight; look

Definitions

Step	Language	Word	Meaning
1	Proto-Indo-European	h₃(o)kʷih₁	—

աչք — Etymology, Origin & Word History | Etymology Explorer