ἀργυρόχρυσος
From LSJ
Καὶ τῶν λεγόντων εὖ καλὸν τὸ μανθάνειν → It is a fine thing to learn from those who speak well
Greek (Liddell-Scott)
ἀργῠρόχρυσος: [ῡ], -ον, ὁ ἐξ ἀργύρου καὶ χρυσοῦ, ἀλλ’ ἴσως ὁ ἐξ ἀργύρου ἐπικεχρυσωμένου, Γεωργ, Παχυμ. Ἀνδ. Παλαιολ. σ. 746Ε.