κηροδοσία
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 (Liddell-Scott)
κηροδοσία: ἡ, φόρος κηροῦ, Συμεὼν Θεσσαλ. περὶ Τελετ. καὶ Μυστηρ. κ. 10 καὶ 11, Δουκάγγ.
