Lewis Short
vexātor (noun M) : id.
* A troubler, harasser, abuser, vexer (Ciceron.): custosne urbis an direptor et vexator esset Antonius,Cic. Phil. 3, 11, 27: aetatulae suae,id. Sest. 8, 18: furoris (Clodii),i. e. opposer,id. Mil. 13, 35.
Charlton T. Lewis, Charles Short, A Latin Dictionary