French word jaune comes from Latin galbus (Yellow.)

Detailed word origin of jaune

Dictionary entry	Language	Definition
galbus	Latin (lat)	Yellow.
galbinus	Latin (lat)	Effeminate. Greenish-yellow, yellowish.
jalne	Old French (fro)
iaune	Middle French (frm)	Yellow Yellow.
jaune	French (fra)	Yellow Yellow. Yolk (of egg).

Words with the same origin as jaune