gelidity vs coldness

gelidity and coldness both are nouns.

Word	Noun	Adjective	Verb	Adverb
gelidity	Yes	No	No	No
coldness	Yes	No	No	No

As nouns, coldness is a hypernym of gelidity; that is, coldness is a word with a broader meaning than gelidity:

Other hypernyms of gelidity include cold, frigidity, frigidness, low temperature.

gelidity (noun)	coldness (noun)
coldness due to a cold environment	the absence of heat
	a lack of affection or enthusiasm
	the sensation produced by low temperatures