magister

noun

Etymology: Borrowed from Latin magister (“a master, chief, head, superior, director, teacher, etc.”), from magis (“more or great”) + -ter. Doublet of maestro, master, and meister.

1. Master; sir: a title used in the Middle Ages, given to a person in authority, or to one having a licence from a university to teach philosophy and the liberal arts.
2. The possessor of a master's degree.
3. The chief male celebrant of an occult ritual.

   “The magnificent Magisters and Magistras, profound Priests and Priestesses, wondrous Witches and Warlocks, astounding Agents, and the ever-inspiring loyal cohort that makes up the Citizenry of our Infernal Empire—you are an aristocracy of achievers, many of whom are cherished friends, and cannot know how very much you each mean to me.”

   “If only the Magistra and Magister of the Rite are present, then just the Magister shall drink of simulate if fake (ie theatrical) blood is used.”