δώρημα
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)
ατος, τό,
A gift, present, Hdt.7.38, etc.: c. dat. pers., A.Pers.523, Eu.402, S.Tr.668: pl., E.Or.123, etc.—Rare in Prose, X.Hier.8.4, Arist.EN1099b11, and later, Ph.2.9, Ep.Jac.1.17.
German (Pape)
[Seite 695] τό, das Geschenk, Tragg., τινί, Aesch. Pers. 520; τὰ σὰ Ἡρακλεῖ δωρήματα, an den H., Soph. Tr. 668; vgl. Ar. Nubb. 305. In Prosa seltener, Xen. Hier. 8, 4; Arist. Eth. N. 1, 9.
