quantitas

From quantus (“how much”) +‎ -tās. Coined by Cicero as a calque of Ancient Greek ποσότης (posótēs); compare quālitās.

quantitās f (genitive quantitātis); third declension

1. greatness, extent, quantity, magnitude, size
2. sum, amount

Third-declension noun.

• “quantitas”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• "quantitas", 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)
• quantitas in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.