köken: Borrowed from Low German Feudel, Feul, Feil, either from or cognate with Dutch feil (“floorcloth”, attested 1616). Further origin uncertain. Ripuarian Fuddel (“old rag”), if related, would suggest that the d is original, whereas all of the following theories require that it is due to hypercorrection: * From Old French faille (“headscarf, veil”), but this is itself of unknown origin and the sense…