¹fur

Though we think of fur as part of the animal that wears it, the history of the word fur begins with clothing rather than animals. Middle English furre, “fur trim or lining for a garment,” was shortened from the synonymous word furour, or else derived from a verb furren, “to trim or line (a garment) with animal skin.” This verb was borrowed from medieval French fourrer, with the identical meaning. Fourrer is a derivative of fuerre, meaning “sheath, wrapper,” since lining a garment provides a sort of warm wrapper for its wearer.