ēvŏcātor, ōris, m. [evoco],
one who calls to arms : servorum et civium perditorum, Cic. Cat. 1, 11, 27.
ēvocātor ōris, m evoco, a summoner, recruiter, one who drums up civium perditorum. ...
An Elementary Latin Dictionary
·noun One who calls forth. ...
Webster's Dictionary of the English Language