noun, plural shak·os or shack·os, shak·oes or shack·oes.
- a military cap in the form of a cylinder or truncated cone, with a visor and a plume or pompon.
noun plural shackos or shackoes
- a variant spelling of shako
noun plural shakos, shakoes, shackos or shackoes
- a tall usually cylindrical military headdress, having a plume and often a peak, popular esp in the 19th century
n.cylindrical soldier’s hat with plume, 1815, from Hungarian csákó, short for csákós süveg “peaked cap,” from adjectival form of csáko “peak, projecting point of a cow’s horn,” which some European etymologists derive from German zacken “point, spike,” but which Hungarian sources regard as of unknown origin.