Source : Webster's Revised Unabridged Dictionary (1913)

Decamp \De*camp"\, v. i. [imp. & p. p. {Decamped} (?; 215); p.
   pr. & vb. n. {Decamping}.] [F. d['e]camper; pref. d['e]- (L.
   dis) + camp camp. See {Camp}.]
   1. To break up a camp; to move away from a camping ground,
      usually by night or secretly. --Macaulay.

   2. Hence, to depart suddenly; to run away; -- generally used
      disparagingly.

            The fathers were ordered to decamp, and the house
            was once again converted into a tavern. --Goldsmith.

Source : WordNet®

decamp
     v 1: leave a camp; "The hikers decamped before dawn" [syn: {break
          camp}]
     2: run away; usually includes taking something or somebody
        along [syn: {abscond}, {bolt}, {absquatulate}, {run off},
        {go off}]
     3: leave suddenly; "She persuaded him to decamp"; "skip town"
        [syn: {skip}, {vamoose}]