Where does “per-nóy” come from?

per-nóy (Proto-Indo-European) comes from Proto-Indo-European per-, from Proto-Indo-European pr̥tós — passed , crossed.

Ancestry of “per-nóy”, step by step

Step	Language	Word	Meaning
1	Proto-Indo-European	per-	before, in front; first; to go through
2	Proto-Indo-European	pr̥tós	passed , crossed

per-nóy — Etymology, Origin & Word History | Etymology Explorer