crampon (n.)

c. 1300, "metal bar bent at the ends for fastening," from Old French crampoun "cramp, brace, staple" (13c.), from Germanic (see cramp (n.1); also compare cramp (n.2)). As "apparatus used in the raising of heavy weights," mid-15c. By 1789 as "plate set with spikes, fastened to the foot to assist in walking on ice or climbing rock."