consuasor
From LSJ
Ἔοικα γοῦν τούτου γε σμικρῷ τινι αὐτῷ τούτῳ σοφώτερος εἶναι, ὅτι ἃ μὴ οἶδα οὐδὲ οἴομαι εἰδέναι → I seem, then, in just this little thing to be wiser than this man at any rate, that what I do not know I do not think I know either
Latin > English (Lewis & Short)
consŭāsor: ōris, m. consuadeo,
I he who strenuously counsels to something, a counsellor, adviser: auctore et consuasore Naevio, Cic. Quint. 5, 18.