barrator

noun

1. One who is guilty of barratry, vexing others with frequent and often groundless lawsuits; a brangler and pettifogger.

   “But by Hawk. P. C. bk. 1, c. 21, if such suits are merely groundless, and brought only with a design to oppress the defendants, such a man may as properly be called a barrator as if he had stirred up others to bring them.”

2. (obsolete)One who abuses their office by dealing fraudulently.
3. One who abuses their office by dealing fraudulently.
4. One who abuses their office by dealing fraudulently.
5. (archaic)A quarrelsome person, one who fights, a bully.

   “I care not though men call me impudent, / Smooth-tongu'd, audacious, petulant, abhominable, / Forger of vvords and lie, contentious Barretour, / Old, vvinding, bragging, teſty, crafty fox.”