Source : Webster's Revised Unabridged Dictionary (1913)

Caprice \Ca*price"\, n. [F. caprice, It. capriccio, caprice
   (perh. orig. a fantastical goat leap), fr. L. caper, capra,
   goat. Cf {Capriole}, {Cab}, {Caper}, v. i.]
   1. An abrupt change in feeling, opinion, or action,
      proceeding from some whim or fancy; a freak; a notion.
      ``Caprices of appetite.'' --W. Irving.

   2. (Mus.) See {Capriccio}.

   Syn: Freak; whim; crotchet; fancy; vagary; humor; whimsey;
        fickleness.

Source : WordNet®

caprice
     n : a sudden desire; "he bought it on an impulse" [syn: {impulse},
          {whim}]