ἐκνεόω
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
Spanish (DGE)
renovar τὸν δὲ οἶνον καὶ τὰ ξύλα ἐγνεούτωσαν διὰ πέντε ἐτῶν IG 12.Suppl.644.18 (Cálcide II a.C.).
