quinquertio
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)
quinquertĭo: ōnis, m., v. quinquertium.
Latin > French (Gaffiot 2016)
quīnquertĭō, ōnis, m. (quinquertium), athlète du pentathle : Andr. d. Fest. 257.
