Australian spelling vs etymologise

Australian spelling is a noun but etymologise is not a noun.

Word	Noun	Adjective	Verb	Adverb
Australian spelling	Yes	No	No	No
etymologise	No	No	Yes	No

Australian spelling (noun)	etymologise (noun)
English orthography used in Australia (characterized by 'analyse', 'centre', 'usable')

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