pilch (n.)

Middle English pilche "garment made from the skin or fur of animals," usually an outer garment, from Old English pilece, from Medieval Latin pellicea "a furred garment," fem. of Latin pelliceus "of fur or skin," from pellis "skin, pelt" (from PIE root *pel- (3) "skin, hide"). Later, "triangular wrapper for an infant, worn over the diaper" (1670s).