εὐπείθεια
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
English (LSJ)
ἡ,
A ready obedience, Zeno Stoic.1.56, Ti.Locr.104b, Str. 7.4.8, LXX 4 Ma.5.16, Plu.Dio4, etc.; also εὐπειθία or εὐπείθια IG5(1).548 (Sparta, ii A. D.); Ion. εὐπειθείη Eus.Mynd. ap. Stob.4.5.29 (v.l. -πειθίη).
