Where does “feas” come from?

feas (Irish) comes from Old Irish ·fess, from Old Irish ro·finnadar, from Proto-Celtic windeti, from Proto-Indo-European weyd- — to see.

feas (Irish): coarse hair, beard

Definitions

Step	Language	Word	Meaning
1	Old Irish	·fess	—
2	Old Irish	ro·finnadar	to find
3	Proto-Celtic	windeti	to know, to see; find
4	Proto-Indo-European	weyd-	to see

feas — Etymology, Origin & Word History | Etymology Explorer