Latin

Noun

phthongus m ‎(genitive phthongī); second declension

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

Declension

Second declension.

Synonyms

• (sound, tone): sonus (Pure Latin)

References

• 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, 1883–1887)
• Félix Gaffiot (1934), “phthongus”, in Dictionnaire Illustré Latin-Français, Paris: Hachette, page 1,178/1.