French word froideur comes from French froid, French -eur

Detailed word origin of froideur

Dictionary entry	Language	Definition
froid	French (fra)	(diseases) cold, chill. (of a relationship) distance, strain Cold (temperature).
-eur	French (fra)	Used to form abstract nouns from adjectives; -ness.. Used to form agent nouns from verbs.
froideur	French (fra)	Coldness, cold.

Words with the same origin as froideur