etymologize vs etymologizing

etymologize is not a noun while etymologizing is a noun.

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

etymologize (noun)	etymologizing (noun)
	(historical linguistics) an explanation of the historical origins of a word or phrase

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