Where does “пра́во-” come from?

пра́во- (Russian) comes from Bulgarian пра́в, from Proto-Slavic pravъ, from Proto-Balto-Slavic prōˀwas, from Proto-Indo-European preh₃-wo-s, from Proto-Indo-European per-, from Proto-Indo-European pr̥tós — passed , crossed.

Ancestry of “пра́во-”, step by step

StepLanguageWordMeaning
1Bulgarianпра́вstraight
2Proto-Slavicpravъright, straight; correct
3Proto-Balto-Slavicprōˀwas—
4Proto-Indo-Europeanpreh₃-wo-s—
5Proto-Indo-Europeanper-before, in front; first; to go through
6Proto-Indo-Europeanpr̥tóspassed , crossed

Words derived from “пра́во-”

Every word from Proto-Indo-European pr̥tós →Every word from Proto-Indo-European per- →Every word from Proto-Indo-European preh₃-wo-s →