etymology vs etymologize

etymology is a noun but etymologize is not a noun.

Word	Noun	Adjective	Verb	Adverb
etymology	Yes	No	No	No
etymologize	No	No	Yes	No

etymology (noun)	etymologize (noun)
the study of the sources and development of words
a history of a word

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