linguistics vs etymologise

linguistics is a noun but etymologise is not a noun.

Word	Noun	Adjective	Verb	Adverb
linguistics	Yes	No	No	No
etymologise	No	No	Yes	No

linguistics (noun)	etymologise (noun)
the scientific study of language
the humanistic study of language and literature

linguistics (verb)	etymologise (verb)
	construct the history of words
	give the etymology or derivation or suggest an etymology (for a word)