imp. of rive.-one of the upper side pieces of the frame of a wagon body or a sleigh.-to wander in mind or intellect; to be delirious; to talk or act irrationally; to be wild, furious, or raging, as a madman.-to rush wildly or furiously.-to talk with unreasonable enthusiasm or excessive passion or excitement; -- followed by about, of, or on; as, he raved about her beauty.-to utter in madness or frenzy; to say wildly; as, to rave nonsense.