impĕrātīvus — Lewis & Short
impĕrātīvus (inp-), a, um, adj.impero,
I of or proceeding from a command, commanded:
feriae,extraordinary, commanded by a magistrate, Macr. S. 1, 16, § 5 sq.:
modus,the imperative, Mart. Cap. 3, § 313, and in the grammarians saep.— Adv.: impĕrātīvē, imperatively, Ulp. Reg. tit. 24, 1.