multiply vs arithmetic

multiply is not a noun while arithmetic is a noun.

Word	Noun	Adjective	Verb	Adverb
multiply	No	No	Yes	Yes
arithmetic	Yes	Yes	No	No

multiply (noun)	arithmetic (noun)
	the branch of pure mathematics dealing with the theory of numerical calculations

multiply (adjective)	arithmetic (adjective)
	relating to or involving arithmetic

multiply (verb)	arithmetic (verb)
have young (animals) or reproduce (organisms)
have offspring or produce more individuals of a given animal or plant
combine or increase by multiplication
make multiple copies of
combine by multiplication

multiply (adverb)	arithmetic (adverb)
in several ways; in a multiple manner