avidity vs ardour

avidity and ardour both are nouns.

Word	Noun	Adjective	Verb	Adverb
avidity	Yes	No	No	No
ardour	Yes	No	No	No

As nouns, ardour is a hyponym of avidity; that is, ardour is a word with a more specific, narrower meaning than avidity:

avidity: a positive feeling of wanting to push ahead with something
ardour: a feeling of strong eagerness (usually in favor of a person or cause)

Other hyponyms of avidity include ardor, elan, zeal.

avidity (noun)	ardour (noun)
a positive feeling of wanting to push ahead with something	intense feeling of love
	a feeling of strong eagerness (usually in favor of a person or cause)
	feelings of great warmth and intensity