commandant Copy link Outline 1. impĕrātor2. ductor3. dux, dŭcis, c.4. praefectus (prop. part. pass. of praeficio • commandant, commander: 1. impĕrātor: i. e. c.-in-chief: v. general: fem. impĕrātrix, īcis: Cic.: Plin. 2. ductor: Cic.: Liv: v. leader. 3. dux, dŭcis, c.: v. general. 4. praefectus (prop. part. pass. of praeficio: hence sometimes foll. by dat.): c. of cavalry, p. equitum, Hirt.; or simply praefectus: Caes.: c. of the fleet, p. classis, Liv.: Cic.: c. of the imperial guard, p. praetorii or praetorio, Tac. Phr.: to be c. of, praeesse: v. to command: to appoint any one c., praeficio, praepono: v. to appoint.