to win upon

from The Collaborative International Dictionary of English v.0.48
Win \Win\, v. i.
   To gain the victory; to be successful; to triumph; to
   prevail.
   [1913 Webster]

         Nor is it aught but just
         That he, who in debate of truth hath won,
         should win in arms.                      --Milton.
   [1913 Webster]

   {To win of}, to be conqueror over. [Obs.] --Shak.

   {To win on} or {To win upon}.
   (a) To gain favor or influence with. "You have a softness and
       beneficence winning on the hearts of others." --Dryden.
   (b) To gain ground on. "The rabble . . . will in time win
       upon power." --Shak.
       [1913 Webster]
    

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