Origin: 1350–1400; ME barettour brawler, fighter < AF barretor, barator, OF barateor, equiv. to barat(er) to make a disturbance, baret(er) to trick, cheat (< VL *prattāre < Gk prttein to do, perform, manage; see practical) + -eor-ator
bar·ra·tor also bar·ra·ter (bār'ə-tər) n. One who engages in barratry.
[Middle English baratour, from Old French barateour, swindler, from barater, to cheat, perhaps from Vulgar Latin *prattāre, from Greek prāttein, to do.]