Source : Webster's Revised Unabridged Dictionary (1913)

Weight \Weight\, v. t. [imp. & p. p. {Weighted}; p. pr. & vb. n.
   {Weighting}.]
   1. To load with a weight or weights; to load down; to make
      heavy; to attach weights to; as, to weight a horse or a
      jockey at a race; to weight a whip handle.

            The arrows of satire, . . . weighted with sense.
                                                  --Coleridge.

   2. (Astron. & Physics) To assign a weight to; to express by a
      number the probable accuracy of, as an observation. See
      {Weight of observations}, under {Weight}.

Source : WordNet®

weighting
     n : (statistics) a coefficient assigned to elements of a
         frequency distribution in order to represent their
         relative importance [syn: {weight}]