Source : Webster's Revised Unabridged Dictionary (1913)

Sport \Sport\, v. i. [imp. & p. p. {Sported}; p. pr. & vb. n.
   {Sporting}.]
   1. To play; to frolic; to wanton.

            [Fish], sporting with quick glance, Show to the sun
            their waved coats dropt with gold.    --Milton.

   2. To practice the diversions of the field or the turf; to be
      given to betting, as upon races.

   3. To trifle. ``He sports with his own life.'' --Tillotson.

   4. (Bot. & Zo["o]l.) To assume suddenly a new and different
      character from the rest of the plant or from the type of
      the species; -- said of a bud, shoot, plant, or animal.
      See {Sport}, n., 6. --Darwin.

   Syn: To play; frolic; game; wanton.