Source : Webster's Revised Unabridged Dictionary (1913)

Buckskin \Buck"skin`\, n.
   1. The skin of a buck.

   2. A soft strong leather, usually yellowish or grayish in
      color, made of deerskin.

   3. A person clothed in buckskin, particularly an American
      soldier of the Revolutionary war.

            Cornwallis fought as lang's he dought, An' did the
            buckskins claw, man.                  --Burns.

   4. pl. Breeches made of buckskin.

            I have alluded to his buckskin.       --Thackeray.

Source : WordNet®

buckskin
     n 1: horse of a light yellowish dun color with dark mane and tail
     2: a soft yellowish suede leather originally from deerskin but
        now usually from sheepskin