Magister

n.

1.

Master; sir; - a title of the Middle Ages, given to a person in authority, or to one having a license from a university to teach philosophy and the liberal arts.

MAGISTER. A master, a ruler, one whose learning and position makes him superior to others, thus: one who has attained to a high degree, or eminence, in science and literature, is called a master; as, master of arts.