onocentaurus
From LSJ
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)
ŏnŏcentaurus: i, m., = ὀνοκένταυρος,
I an ass-centaur, a fabulous animal, Isid. Orig. 11, 3, 39: et occurrent daemonia onocentauris, Vulg. Isa. 34, 14.—Transf., of an impure person, Hier. in Isa. 6, 13, 22.
Latin > French (Gaffiot 2016)
ŏnŏcentaurus, ī, m. (ὀνοκένταυρος), onocentaure animal fabuleux] : Vulg. Is. 34, 14.