The Collaborative International Dictionary of English v.0.48:

Chauffeur \Chauf`feur"\, n. [F., lit., stoker.]
   1. [pl.] (F. Hist.) Brigands in bands, who, about 1793,
      pillaged, burned, and killed in parts of France; -- so
      called because they used to burn the feet of their victims
      to extort money.
      [Webster 1913 Suppl.]

   2. One who manages the running of an automobile or limousine;
      esp., the paid operator of a motor vehicle.
      [Webster 1913 Suppl.]

WordNet (r) 3.0 (2006):

chauffeur
    n 1: a man paid to drive a privately owned car
    v 1: drive someone in a vehicle [syn: drive around,
         chauffeur]