exorbitance vs inordinateness

exorbitance and inordinateness both are nouns.

Word	Noun	Adjective	Verb	Adverb
exorbitance	Yes	No	No	No
inordinateness	Yes	No	No	No

As nouns, inordinateness is a hypernym of exorbitance; that is, inordinateness is a word with a broader meaning than exorbitance:

exorbitance: excessive excess
inordinateness: immoderation as a consequence of going beyond sufficient or permitted limits

Other hypernyms of exorbitance include excess, excessiveness.

exorbitance (noun)	inordinateness (noun)
excessive excess	immoderation as a consequence of going beyond sufficient or permitted limits