Where does “pr̥k-” come from?

pr̥k- (Proto-Balto-Slavic) comes from Proto-Indo-European per-, from Proto-Indo-European pr̥tós — passed , crossed.

Ancestry of “pr̥k-”, step by step

StepLanguageWordMeaning
1Proto-Indo-Europeanper-before, in front; first; to go through
2Proto-Indo-Europeanpr̥tóspassed , crossed

Words derived from “pr̥k-

Every word from Proto-Indo-European pr̥tósEvery word from Proto-Indo-European per-