Also used figuratively in Middle English of "one who improperly occupies two offices." As a name for the condition, Middle English had hermofrodito (late 14c.), hermofrodisia (early 15c.). As an adjective, from c. 1600. Also used of things of two natures, such as hermaphrodite brig, for a vessel square-masted fore and schooner-rigged aft.
fem. proper name, from Irish Brighid, goddess associated with fire, spring, fertility, healing, poetry and smithcraft, from brigh "strength," from Celtic *brig-o-, from PIE *bhrgh-nt- "high, mighty," from root *bhergh- (2) "high."
"liveliness, vivacity," 1734, from Italian brio "mettle, fire, life," perhaps a shortened derivative of Latin ebrius "drunk." Or via Provençal briu "vigor," from Celtic *brig-o- "strength," from PIE root *gwere- (1) "heavy." Probably it entered English via the musical instruction con brio.