What does "rave" mean?

Rave: To wander in mind or intellect; to be delirious; to talk or act irrationally; to be wild, furious, or raging, as a madman. In our madness evermore we rave. Chaucer. Have I not cause to rave and beat my breast Addison. The mingled torrent of redcoats and tartans went raving down the valley to the gorge of Kiliecrankie. Macaulay.

Additional senses

  1. 2.To rush wildly or furiously. Spencer.
  2. 3.To talk with unreasonable enthusiasm or excessive passion or excitement; -- followed by about, of, or on; as, he raved about her beauty. The hallowed scene Which others rave on, though they know it not. Byron.
  3. 4.To utter in madness or frenzy; to say wildly; as, to rave nonsense. Young.

Sources