συνδιαταλαιπωρέω
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)
A endure hardship with or together, Pl.Cri. 45d.
German (Pape)
[Seite 1008] mit oder zugleich Mühsal, Unglück überstehen, Plat. Crit. 45 d.
