Fanfaronade \fan-fair-uh-NAYD\ or \fan-fair-uh-NOD\ , noun;
1. Swaggering; empty boasting; blustering manner or behavior; ostentatious display
This word dates to the mid-1600's and comes from French fanfaronnade, which derives from fanfaron ("a bully, a hector, a swaggerer, and empty boaster")*. There is a similar word in Spanish: fanfarronada.
A similar word, fanfare, comes from the same roots as fanfaronade**:
Fanfare dates to the 1600's and comes from French fanfare, which derives from fanfarer ("blow a fanfare").
Both words are probably borrowed from Arabic farfar, which means "chatter" and is a near-onomatopoeic imitation of what chatter sounds like.
Today's word and the first definition were both taken from Dictionary.com's 'Word of the Day' for Wednesday, March 9
Etymologies come from the Oxford English Dictionary and/or Etymonline.com