epitome
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 > Greek (Woodhouse)
subs.
P. κεφάλαιον, τό.
Latin > English (Lewis & Short)
ĕpĭtŏmē: (nom. ĕpĭtŏma, Cic. Att. 12, 5, 3), ēs, f., = ἐπιτομή,
I an abridgment, epitome, Cic. Att. 12, 5, 3; 13, 8.—In plur., Col. 1, 1, 10: librum in epitomen cogere, Aus. Ep. 19 al.
Latin > French (Gaffiot 2016)
ĕpĭtŏmē, ēs, f. (ἐπιτομή), abrégé, extrait, épitomé : Cic. Att. 13, 8, 1 ; Col. Rust. 1, 1, 10.