French word plafond comes from French plat, French fonds ((Switzerland) field Fund, funds. Resources.)

Detailed word origin of plafond

Dictionary entry	Language	Definition
plat	French (fra)	Flat A flat area of ground; a flat thing; a flat dish or receptacle. Dish or course (e.g. served in a restaurant).
fonds	French (fra)	(Switzerland) field Fund, funds. Resources.
plafond	French (fra)	Ceiling.

Words with the same origin as plafond