(Latin) The word praetor indicates the man who 'goes before the others'. A magistrate or leader.
"There is the need for the disciple to be skillful in the astral, so that he can assist the Praetor of the Holy Gnostic Church at dawn on Fridays and Sundays. The other days, the disciple can receive wisdom within the Temple’s hall of esoteric instruction." - Samael Aun Weor, The Revolution of Beelzebub