Origin: 1325–75; < Latin administrāre to assist, carry out, manage the affairs of (see ad-, minister); replacing Middle English amynistre (with a-5) < Middle French aministrer
late 14c., "to manage as a steward," from O.Fr. aministrer, from L. administrare "serve, carry out, manage," from ad- "to" + ministrare "serve" (see minister). Used of medicine, etc., "to give," from 1540s.