extraneity vs excessiveness

extraneity and excessiveness both are nouns.

Word	Noun	Adjective	Verb	Adverb
extraneity	Yes	No	No	No
excessiveness	Yes	No	No	No

As nouns, excessiveness is a hypernym of extraneity; that is, excessiveness is a word with a broader meaning than extraneity:

extraneity: The state of not forming an essential or vital part.
excessiveness: immoderation as a consequence of going beyond sufficient or permitted limits

Other hypernyms of extraneity include excess, inordinateness.

extraneity (noun)	excessiveness (noun)
The state of not forming an essential or vital part.	immoderation as a consequence of going beyond sufficient or permitted limits