French word froidir comes from French froid, French -ir (A suffix forming infinitives of many verbs.)

Detailed word origin of froidir

Dictionary entry	Language	Definition
froid	French (fra)	(diseases) cold, chill. (of a relationship) distance, strain Cold (temperature).
-ir	French (fra)	A suffix forming infinitives of many verbs.
froidir	French (fra)	(archaic) to cool; to cool off; to cool down.

Words with the same origin as froidir