πνευματοκιθάρα
From LSJ
Ὥσπερ οἱ ἐρωτικοὶ ἀπὸ τῶν ἐν αἰσθήσει καλῶν ὁδῷ προϊόντες ἐπ' αὐτὴν καταντῶσι τὴν μίαν τῶν καλῶν πάντων καὶ νοητῶν ἀρχήν → Just as lovers systematically leave behind what is fair to sensation and attain the one true source of all that is fair and intelligible
Greek (Liddell-Scott)
πνευμᾰτοκιθάρα: ἡ, (ὁ Δαβίδ), Θεοφάν. Κεραμ. σ. 317, ἔκδ. Mi.