ζυγάδιον

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

Source
Click links below for lookup in third sources:
Full diacritics: ζῠγάδιον Medium diacritics: ζυγάδιον Low diacritics: ζυγάδιον Capitals: ΖΥΓΑΔΙΟΝ
Transliteration A: zygádion Transliteration B: zygadion Transliteration C: zygadion Beta Code: zuga/dion

English (LSJ)

τό, a kind of shoe, prob. in Suid. s.v. ξυρίδες.