Quantity is defined as an amount, measure or number.
(noun)An example of quantity is how many apples are in a barrel.
See quantity in Webster's New World College Dictionary
noun pl. quantities
Origin: ME quantite < OFr < L quantitas < quantus, how great < quam, how, how much < IE interrogative base *kwo- > who, what
See quantity in American Heritage Dictionary 4
noun pl. quan·ti·ties
Origin:
Origin: Middle English quantite
Origin: , from Old French
Origin: , from Latin quantitās, quantitāt-
Origin: , from quantus, how great; see kwo- in Indo-European roots
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