Lewis Short
(adjective) : impĕrātōrĭus (inp-), a, um, imperator.
* Of or belonging to a general (class.): quod ipse honos laborem leviorem faceret imperatorium,Cic. Tusc. 2, 26, 62: jus,Cic. Verr. 2, 1, 21, § 57; cf. partes (shortly before: imperatoris partes),Caes. B. C. 3, 51, 5: nomen,Cic. Fam. 11, 4, 1; Tac. A. 1, 3: consilium,Cic. N. D. 3, 6, 15: laus,id. Ac. 2, 1, 2: virtus,Quint. 7, 10, 13; 8, 2, 11: ars,id. 2, 17, 34: manubiae,Cic. de Or. 3, 3, 10: pulvis sudorque (opp. campestris meditatio),Plin. Pan. 13, 1: navis,an admiral's ship,Plin. 19, 1, 5, § 22.—* Adv.: impĕrātōrĭē, like a general: dum se ad id bellum imperatorie instruit, Treb. Claud. 6.
* (Acc. to imperator, II. B. 3.) Imperial: genesis,Suet. Dom. 10: munera,id. Vesp. 24: onera,id. Calig. 42.
Charlton T. Lewis, Charles Short, A Latin Dictionary