fervour vs passionateness

fervour and passionateness both are nouns.

Word	Noun	Adjective	Verb	Adverb
fervour	Yes	No	No	No
passionateness	Yes	No	No	No

As nouns, passionateness is a hypernym of fervour; that is, passionateness is a word with a broader meaning than fervour:

Other hypernyms of fervour include passion.

fervour (noun)	passionateness (noun)
feelings of great warmth and intensity	a strong feeling or emotion
the state of being emotionally aroused and worked up