mystăgōgus, i, m., = μυσταγωγός,
one who conducts a person through secret and sacred places as a guide , an initiator, a mystagogue , Cic. Verr. 2, 4, 59, § 132.— Trop.: amicitiae meae, te mystagogo usus, accessit, the founder , Symm. Ep. 5, 64.
mystagōgus ī, m , μυστογωγός, a guide to mysteries, verger, valet de place. ...
An Elementary Latin Dictionary