Quántitas, pen. cor. tâtis, f. g. Plin. Quantitie.
Lewis and Short: Latin dictionary
quantĭtas, ātis, f. [quantus]. I. In gen., greatness, extent, quantity (perh. only post-Aug.): quantitas est modulorum ex ipsius operis sumptione, singulisque membrorum partibus, universi operis conveniens effectus, Vitr. 1, 2: umoris, Plin. 17, 24, 37, 219: modi seu numeri, Quint. 7, 4, 3: vocis,
strength
, id. 11, 3, 14: quantitas et qualitas, id. 7, 2, 6: pretii, App. Mag. p. 239, 11.— II. In partic. A.A sum, amount (post-class.): si non corpus sit legatum, sed quantitas, Dig. 30, 1, 34, 3; 12, 1, 6.— 2.A sum of money, Dig. 16, 2, 11; 49, 14, 47; 45, 1, 65.— B. In logic: quantitas propositionis, the quantity or extent of a proposition, which is either universal or particular, App. Dogm. Plat. 3, p. 29 fin.; Mart. Cap. 4, 342, 371 sqq.