magister

maestro, maisteri, mestari Master; sir: a title used in 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.
The possessor of a master's degree.
teacher
master; 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
The possessor of the academic degree of magister, a historical equivalent of the doctorate (1479–1845 and 1921–2003)
puhekieltä male teacher