also pick-axe, "tool used for breaking up and digging ground," especially a pick with a sharp point on one side of the head and a broad blade on the other, early 15c., folk etymology alteration (by influence of axe) of Middle English picas, pikeis (mid-13c.), via Anglo-French piceis, Old French pocois (11c.) and directly from Medieval Latin picosa "pick," which is related to Latin picus "woodpecker" (see pie (n.2)).