μελίφθογγος
From LSJ
βωμὸν Ἀριστοτέλης ἱδρύσατο τόνδε Πλάτωνος, ἀνδρὸς ὃν οὐδ' αἰνεῖν τοῖσι κακοῖσι θέμις → Aristotle had this altar of Plato set up — Plato, a man whom the wicked dare not even mention in praise
English (LSJ)
ον,
A honey-voiced, Μοῖσαι, ἀοιδαί, Pi.O.6.21, I.2.7.
German (Pape)
[Seite 125] dasselbe; Τερψιχόρα, Pind. I. 2, 7, Μοῖσαι, Ol. 6, 21, ἀοιδαί, I. 5, 8, u. öfter bei sp. D.