Etymology of the English word magistery
the English word
magisteryderived from the Medieval Latin word
magisterium (master; office of superintendent, president, master)
derived from the Late Latin word
magister (teacher, tutor, master)
derived from the Latin word
magis (bigger; greater)
derived from the Latin word
magnus (large; full, complete, utter; great; mighty; distinguished; large, great, big)
derived from the Proto-Indo-European root
*meg- (great)
Date
The earliest known usage of magistery in English dates from the 16th century.