εὐρυμέδων
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)
οντος, ὁ,
A = εὐρυκρείων, of αἰθήρ, Emp.135.1; Ποσειδάν Pi.O.8.31; γόνον εὐ. Κρόνου, i.e. Chiron, Id.P.3.4:—in Hom. only as pr. n.; so also fem. Εὐρυμέδουσα.
German (Pape)
[Seite 1095] οντος, = εὐρυκρείων, Ποσειδᾶν Pind. Ol. 8, 31, Χείρων P. 3, 4; auch αἰθήρ, sich weithin erstreckend, Empedocl. 380.
