phthongus

From the Ancient Greek φθόγγος (phthóngos, “any clear, distinct sound”).

• (Classical Latin) IPA^(key): [ˈpʰtʰɔŋ.ɡʊs]
• (modern Italianate Ecclesiastical) IPA^(key): [ˈft̪ɔŋ.ɡus]

phthongus m (genitive phthongī); second declension

1. a sound, tone
2. a note in music

Second-declension noun.

• (sound, tone): sonus (Pure Latin)

• “phthongus”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• "phthongus", in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
• phthongus in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette, page 1,178/1.