υψηλοφροσύνη
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
Greek Monolingual
η / ὑψηλοφροσύνη, ΝΜΑ ὑψηλόφρων
το να είναι κανείς υψηλόφρων, γενναιοφροσύνη.
