πολυηχής
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)
ές, (ἦχος)
A many-toned, of the nightingale's voice, Od. 19.521; χοροῦ π. φωνή AP9.504; much or loud-sounding, αἰγιαλός Il.4.422; ἄνεμος, πέτραι, A.R.4.609,963.
German (Pape)
[Seite 663] ές, vieltönig; φωνή, von der klangreichen Stimme der Nachtigall, Od. 19, 521; αἰγιαλός, laut wiederhallend, von der Brandung, Il. 4, 422; φωνὴ τραγικοῦ χοροῦ, Ep. ad. (XI, 504); Qu. Sm. 1, 294 u. a. sp. D.
