Where does “рои” come from?

рои (Old East Slavic) comes from Proto-Slavic rojь, from Proto-Indo-European h₃reyH-, from Proto-Indo-European h₃er- — to move, to stir; to rise, to spring; to quarrel,...

Ancestry of “рои”, step by step

StepLanguageWordMeaning
1Proto-Slavicrojьswarm
2Proto-Indo-Europeanh₃reyH-to move, set in motion
3Proto-Indo-Europeanh₃er-to move, to stir; to rise, to spring; to quarrel,...

Words derived from “рои”

Every word from Proto-Indo-European h₃er- →Every word from Proto-Indo-European h₃reyH- →Every word from Proto-Slavic rojь →