stately vs stateliness

stately is not a noun while stateliness is a noun.

Word	Noun	Adjective	Verb	Adverb
stately	No	Yes	No	No
stateliness	Yes	No	No	No

stately (noun)	stateliness (noun)
	an elaborate manner of doing something
	impressiveness in scale or proportion

stately (adjective)	stateliness (adjective)
refined or imposing in manner or appearance; befitting a royal court
impressive in size, manner, or appearance
of size and dignity suggestive of a statue