Where does “ro-” come from?

ro- (Old Irish) comes from Proto-Celtic ɸro-, from Proto-Indo-European per-, from Proto-Indo-European pr̥tós — passed , crossed.

ro- (Old Irish): indicates a perfective aspect; indicates...

Definitions

  1. indicates a perfective aspect; indicates...

Ancestry of “ro-”, step by step

StepLanguageWordMeaning
1Proto-Celticɸro-before, in front of; in addition; to completion
2Proto-Indo-Europeanper-before, in front; first; to go through
3Proto-Indo-Europeanpr̥tóspassed , crossed

Words derived from “ro-”

Every word from Proto-Indo-European pr̥tós →Every word from Proto-Indo-European per- →Every word from Proto-Celtic ɸro- →