nobility vs nobleness

nobility and nobleness both are nouns.

Word	Noun	Adjective	Verb	Adverb
nobility	Yes	No	No	No
nobleness	Yes	No	No	No

As nouns, nobility and nobleness are synonyms defined as:

nobility and nobleness: the quality of elevation of mind and exaltation of character or ideals or conduct

Other synonyms of nobility include grandeur, magnanimousness.

nobility (noun)	nobleness (noun)
the quality of elevation of mind and exaltation of character or ideals or conduct	the quality of elevation of mind and exaltation of character or ideals or conduct
a privileged class holding hereditary titles
the state of being of noble birth