Latin

Noun

quaterniō f ‎(genitive quaterniōnis); third declension

1. The number four (e.g. on a dice)
2. A group of four soldiers
3. quaternion

Inflection

Third declension.

References

• quaternio in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• QUATERNIO in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition, 1883–1887)
• Félix Gaffiot (1934), “quaternio”, in Dictionnaire Illustré Latin-Français, Paris: Hachette.
• quaternio in Harry Thurston Peck, editor (1898) Harper's Dictionary of Classical Antiquities, New York: Harper & Brothers