excess vs nimiety

excess and nimiety both are nouns.

Word	Noun	Adjective	Verb	Adverb
excess	Yes	Yes	No	No
nimiety	Yes	No	No	No

As nouns, excess and nimiety are synonyms defined as:

Other synonyms of excess include surplus, surplusage.

excess (noun)	nimiety (noun)
excessive indulgence	a quantity much larger than is needed
immoderation as a consequence of going beyond sufficient or permitted limits
a quantity much larger than is needed
the state of being more than full

excess (adjective)	nimiety (adjective)
more than is needed, desired, or required