illustrate
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)
verb transitive
show: P. and V. φαίνειν. δηλοῦν, σημαίνειν (Plato), δεικνύναι.
explain: P. and V. ἐξηγεῖσθαι, ἑρμηνεύειν, φράζειν; see explain.
give an example of: P. παράδειγμα διδόναι (gen.).
he will choose the most suitable of the events that illustrate his subject: P. τῶν πράξεων τῶν συντεινουσῶν πρὸς τὴν ὑπόθεσιν ἐκλέξεται τὰς πρεπωδεστάτας (Isoc., antid. 121).