Ἀτρείδας
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 (Slater)
Ἀτρείδας son of Atreus θάνεν μὲν αὐτὸς ἥρως ᾰτρεδας ἵκων χρόνῳ κλυταῖς ἐν Ἀμύκλαις sc. Agamemnon (P. 11.31) pl., Agamemnon and Menelaos. τοῦ παῖς ἅμ' ̆ατρείδαις Τεύθραντος πεδίον μολὼν (O. 9.70) τοὶ καὶ σὺν μάχαις δὶς πόλιν Τρώων πράθον, ἑσπόμενοι Ἡρακλῆι πρότερον καὶ σὺν Ἀτρεδαις (I. 5.38) γεφύρωσέ τ' Ἀτρεδαισι νόστον (Benedictus: ἀτρεάδαισι codd.) (I. 8.51)
