prōmissīvus, a, um, adj. [promitto],
promising , promissive; in gram.; promissivum tempus, i. e. the future tense , Cons. p. 2061 P.: modus, Diom. p. 328 P.: sententiae, Isid. 2, 21, 18.—Adv.: prōmissīvē , by way of promise , with a promise (postclass.), Tert. adv. Marc. 4, 10.