Origin:
Mid 16th century; earliest use found in Thomas Elyot (c1490–1546), humanist and diplomat. From Middle French adiutour, adiuteur, adjuteur (French (now rare) adjuteur) person who helps and its etymon classical Latin adiūtor helper, accomplice, supporter, assistant from adiūt-, past participial stem of adiuvāre to help + -or.