American spelling vs solemnize

American spelling is a noun but solemnize is not a noun.

Word	Noun	Adjective	Verb	Adverb
American spelling	Yes	No	No	No
solemnize	No	No	Yes	No

American spelling (noun)	solemnize (noun)
English orthography used in the United States (characterized by 'analyze', 'center', 'usable')

American spelling (verb)	solemnize (verb)
	make solemn and grave
	observe or perform with dignity or gravity
	perform (the wedding ceremony) with proper ceremonies