promissivus
Δελφῖνα νήχεσθαι διδάσκεις: ἐπὶ τῶν ἐν ἐκείνοις τινὰ παιδοτριβούντων, ἐν οἷς ἤσκηται → Teaching dolphins to swim: is applied to those who are teaching something among people who are already well versed in it
Latin > English (Lewis & Short)
prōmissīvus: a, um, adj. promitto,
I 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.
Latin > French (Gaffiot 2016)
prōmissīvus, a, um, qui promet : Isid. Orig. 2, 21, 18 ; promissivus modus, promissivum tempus Diom. 338, 8 ; Consent. 374, 29, le futur [t. de gramm.].
Latin > German (Georges)
prōmissīvus, a, um (promitto), Verheißung ausdrückend, verheißend (als gramm. t. t.), tempus, das Futurum, Consent. 374, 29 K.: modus, Diom. 338, 8: coniunctio, Diom. 417, 17: sententiae, Isid. orig. 2, 21, 18.