Source : Webster's Revised Unabridged Dictionary (1913)

Advantage \Ad*van"tage\, v. t. [imp. & p. p. {Advantaged}; p.
   pr. & vb. n. {Advantaging}.] [F. avantager, fr. avantage. See
   {Advance}.]
   To give an advantage to; to further; to promote; to benefit;
   to profit.

         The truth is, the archbishop's own stiffness and
         averseness to comply with the court designs, advantaged
         his adversaries against him.             --Fuller.

         What is a man advantaged, if he gain the whole world,
         and lose himself, or be cast away?       --Luke ix. 25.

   {To advantage one's self of}, to avail one's self of. [Obs.]