French word geler comes from Proto-Indo-European *gʷel-, and later Latin gelu (Chill. Frost.)

Detailed word origin of geler

Dictionary entry	Language	Definition
*gʷel-	Proto-Indo-European (ine-pro)
gelu	Latin (lat)	Chill. Frost.
gelo	Latin (lat)	I freeze, cause to congeal.. I frighten, petrify, cause to become rigid with fright.
geler	Old French (fro)	(ambitransitive) to freeze. (intransitive, _, or, _, reflexive) to be very cold.
geler	French (fra)	(impersonal, weather) to be very cold. To freeze.

Words with the same origin as geler