spoil (http://definr.com/spoil)

     n 1: (usually plural) valuables taken by violence (especially in
          war); "to the victor belong the spoils of the enemy"
     2: the act of spoiling something by causing damage to it; "her
        spoiling my dress was deliberate" [syn: spoiling, spoilage]
     3: the act of stripping and taking by force [syn: spoliation,
         spoilation, despoliation, despoilment]
     v 1: make a mess of, destroy or ruin [syn: botch, bumble, fumble,
           botch up, muff, blow, flub, screw up, {ball
          up}, muck up, bungle, fluff, bollix, bollix up,
           bollocks, bollocks up, bobble, mishandle, {louse
          up}, foul up, mess up, fuck up]
     2:  become unfit for consumption or use; "the meat must be
        eaten before it spoils" [syn: go bad]
     3: alter from the original [syn: corrupt]
     4: treat with excessive indulgence; "grandparents often pamper
        the children"; "Let's not mollycoddle our students!" [syn:
         pamper, featherbed, cosset, cocker, baby, coddle,
         mollycoddle, indulge]
     5: hinder or prevent (the efforts, plans, or desires) of; "What
        ultimately frustrated every challenger was Ruth's amazing
        September surge"; "foil your opponent" [syn: thwart, queer,
         scotch, foil, cross, frustrate, baffle, bilk]
     6: hinder or prevent (the efforts, plans, or desires) of [syn:
        frustrate, thwart]
     7: make imperfect; "nothing marred her beauty" [syn: mar, impair,
         deflower, vitiate]