Mystagogue

Mystagogue (Gr. mustēs, 'an initiated person,' and ago, 'I lead'), the name in the Greek religious system of the priest whose duty it was to direct the preparations of the candidates for initiation in the several mysteries, as well as to conduct the ceremonial of initiation. The same name is applied in the Christian church as early as the 4th and 5th centuries to the catechists or other clergy who prepared candidates for the Christian mysteries, or sacraments, of baptism, confirmation, and the eucharist, especially the last.