The Collaborative International Dictionary of English v.0.48:

Grudge \Grudge\ (gr[u^]j), v. t. [imp. & p. p. Grudger; p. pr.
   & vb. n. Grudging.] [OE. grutchen, gruchen, grochen, to
   murmur, grumble, OF. grochier, grouchier, grocier, groucier;
   cf. Icel. krytja to murmur, krutr a murmur, or E. grunt.]
   1. To look upon with desire to possess or to appropriate; to
      envy (one) the possession of; to begrudge; to covet; to
      give with reluctance; to desire to get back again; --
      followed by the direct object only, or by both the direct
      and indirect objects.
      [1913 Webster]

            Tis not in thee To grudge my pleasures, to cut off
            my train.                             --Shak.
      [1913 Webster]

            I have often heard the Presbyterians say, they did
            not grudge us our employments.        --Swift.
      [1913 Webster]

            They have grudged us contribution.    --Shak.
      [1913 Webster]

   2. To hold or harbor with malicious disposition or purpose;
      to cherish enviously. [Obs.]
      [1913 Webster]

            Perish they
            That grudge one thought against your majesty !
                                                  --Shak.
      [1913 Webster]

WordNet (r) 3.0 (2006):

grudging
    adj 1: of especially an attitude; "gave grudging consent";
           "grudging acceptance of his opponent's victory"
    2: petty or reluctant in giving or spending; "a niggardly tip"
       [syn: grudging, niggardly, scrimy]

Moby Thesaurus II by Grady Ward, 1.0:

32 Moby Thesaurus words for "grudging":
   apathetic, backward, balking, balky, begrudging, covetous,
   desirous of, dilatory, envious, envying, green with envy,
   indifferent, invidious, jealous, laggard, loath, mean, mingy,
   niggard, niggardly, penurious, perfunctory, pinchpenny, reluctant,
   renitent, restive, shabby, slow, slow to, sordid, unenthusiastic,
   unzealous