Origin: 1805–15; < French schako < Hungarian csákó, short for csákós (süveg) peaked (cap), adj. derivative of csák peak < Middle High German zacke peak, point; see tack1
cylindrical soldier's hat with plume, 1815, from Hungarian csákó, short for csákós süveg "peaked cap," from adj. form of csáko "peak, projecting point of a cow's horn," which some European etymologists derive from Ger. zacken "point, spike," but which Hungarian