1. a state of being pleasantly lost in one's thoughts; a daydream: "a knock on the door broke her reverie"
▪ an instrumental piece suggesting a dreamy or musing state: "his own compositions can move from impressionist reveries to an orchestral chordal approach"
▪ a fanciful or impractical idea or theory:"he defended and explained all the reveries of astrology"
Word Originearly 17th century: from obsolete French resverie, from Old French reverie ‘rejoicing, revelry’, from rever ‘be delirious’, of unknown ultimate origin.
