Meaning

noun a traveler who actively rides an animal (as a horse or camel)

noun a clause that is appended to a legislative bill

noun a traveler who actively rides a vehicle (as a bicycle or motorcycle)

origin* As an English surname, from the noun rider. * Also as an English surname, from Old English rēodan (“to clear out”), from Proto-West Germanic *reudan. Compare Reeder. * Also as an English surname, from dialectal rithe (“small stream”). * As an Irish surname, calque from Irish ó marcaigh (“descendant of the (horse)rider”). This is also found directly in Markey. * As a German surname, Americanized…

Etymology from Wiktionary, CC BY-SA 3.0