Old Spanish Etymology Borrowed from Latin quantitātem, accusative of quantitās, from quantus (“how much”). Pronunciation IPA(key): /kʷantiˈdat/ Noun quantidat f (usually uncountable) amount, quantity c. 1250, Alfonso X, Lapidario, f. 2r:Et deſta manera puede tirar muchos fierros apegando ſe unos a otros faſta tamanna quantidat quãto pueda ſofrir.And so it can attract many pieces of iron, sticking one to the other up to a large quantity, so many as it can bear. Related terms quantia quanto Descendants Spanish: cantidadWikiwand - on Seamless Wikipedia browsing. On steroids.