Lewis Short
prĕcātor (noun M) : id.
* One who prays or entreats, an intercessor (ante-class.): precator et patronus,Plaut. Ps. 2, 2, 12; id. As. 2, 4, 9; Ter. Heaut. 5, 2, 23: ad precatorem adeam,id. Phorm. 1, 2, 90.
Charlton T. Lewis, Charles Short, A Latin Dictionary