ἰσόπτωτος
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)
ον, (πτῶσις)
A with like cases, A.D.Pron.90.6.
German (Pape)
[Seite 1266] gleichlautende Casus habend, Gramm.
