Source : Webster's Revised Unabridged Dictionary (1913)

Outdo \Out*do"\, v. t. [imp. {Outdid}; p. p. {Outdone}; p. pr. &
   vb. n. {Outdoing}.]
   To go beyond in performance; to excel; to surpass.

         An imposture outdoes the original.       --L' Estrange.

         I grieve to be outdone by Gay.           --Swift.

Source : WordNet®

outdo
     v 1: be or do something to a greater degree; "her performance
          surpasses that of any other student I know"; "She
          outdoes all other athletes"; "This exceeds all my
          expectations"; "This car outperforms all others in its
          class" [syn: {surpass}, {outstrip}, {outmatch}, {outgo},
           {exceed}, {surmount}, {outperform}]
     2: get the better of; "the goal was to best the competition"
        [syn: {outflank}, {trump}, {best}, {scoop}]
     [also: {outdone}, {outdid}]

outdid
     See {outdo}