fitting vs fittingness

fitting and fittingness both are nouns.

Word	Noun	Adjective	Verb	Adverb
fitting	Yes	Yes	No	No
fittingness	Yes	No	No	No

fitting (noun)	fittingness (noun)
putting clothes on to see whether they fit	the quality of being suitable
a small and often standardized accessory to a larger system
(usually in the plural) furnishings and equipment (especially for a ship or hotel)
making or becoming suitable; adjusting to circumstances

fitting (adjective)	fittingness (adjective)
being precisely fitting and right
in harmony with the spirit of particular persons or occasion