Source : Webster's Revised Unabridged Dictionary (1913)

Spoil \Spoil\, v. t. [imp. & p. p. {Spoiled}or {Spoilt}; p. pr.
   & vb. n. {Spoiling}.] [F. spolier, OF. espoilelier, fr. L.
   spoliare, fr. spolium spoil. Cf. {Despoil}, {Spoliation}.]
   1. To plunder; to strip by violence; to pillage; to rob; --
      with of before the name of the thing taken; as, to spoil
      one of his goods or possession. ``Ye shall spoil the
      Egyptians.'' --Ex. iii. 22.

            My sons their old, unhappy sire despise, Spoiled of
            his kingdom, and deprived of eues.    --Pope.

   2. To seize by violence;; to take by force; to plunder.

            No man can enter into a strong man's house, and
            spoil his goods, except he will first bind the
            strong man.                           --Mark iii.
                                                  27.

   3. To cause to decay and perish; to corrput; to vitiate; to
      mar.

            Spiritual pride spoils many graces.   --Jer. Taylor.

   4. To render useless by injury; to injure fatally; to ruin;
      to destroy; as, to spoil paper; to have the crops spoiled
      by insects; to spoil the eyes by reading.

Source : WordNet®

spoilt
     adj 1: having the character or disposition harmed by pampering or
            oversolicitous attention; "a spoiled child" [syn: {spoiled}]
     2: (of foodstuffs) not in an edible or usable condition; "bad
        meat"; "a refrigerator full of spoilt food" [syn: {bad}, {spoiled}]
     3: affected by blight--anything that mars or events growth or
        prosperity; "a blighted rose"; "blighted urtan districts"
        [syn: {blighted}]

spoil
     v 1: make a mess of, destroy or ruin; "I botched the dinner and
          we had to eat out"; "the pianist screwed up the
          difficult passage in the second movement" [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: have a strong desire or urge to do something; "She is
        itching to start the project"; "He is spoiling for a
        fight" [syn: {itch}]
     7: destroy and strip of its possession; "The soldiers raped the
        beautiful country" [syn: {rape}, {despoil}, {violate}, {plunder}]
     8: make imperfect; "nothing marred her beauty" [syn: {mar}, {impair},
         {deflower}, {vitiate}]
     [also: {spoilt}]

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}, {despoilation}, {despoilment}, {despoliation}]
     [also: {spoilt}]

spoilt
     See {spoil}