Words that come from Proto-Indo-European h₃rews-

18 words across 4 languages descend from Proto-Indo-European h₃rews- — including rychlý, rychlost, rychły, rychlobruslení, rozruch, ruch, rychlík, rychlovlak.

See the etymology of h₃rews- itself →

Polish (10)

Czech (5)

Proto-Slavic (2)

Proto-Indo-European (1)