Word Origin & History
rudec.1280, "coarse, rough" (of surfaces), from L. rudis "rough, crude, unlearned," perhaps related to rudus "rubble." Sense of "ill-mannered" is from late 14c. Rudesby "insolent, unmannerly fellow" is from 1566. Rude boy (also rudie, for short) in Jamaican slang is attested from 1967. Fig. phrase rude awakening
is attested from 1895.