The Collaborative International Dictionary of English v.0.48:

Surfeit \Sur"feit\, n. [OE. surfet, OF. surfait, sorfait,
   excess, arrogance, crime, fr. surfaire, sorfaire, to augment,
   exaggerate, F. surfaire to overcharge; sur over + faire to
   make, do, L. facere. See Sur-, and Fact.]
   1. Excess in eating and drinking.
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            Let not Sir Surfeit sit at thy board. --Piers
                                                  Plowman.
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            Now comes the sick hour that his surfeit made.
                                                  --Shak.
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   2. Fullness and oppression of the system, occasioned often by
      excessive eating and drinking.
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            To prevent surfeit and other diseases that are
            incident to those that heat their blood by travels.
                                                  --Bunyan.
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   3. Disgust caused by excess; satiety. --Sir P. Sidney.
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            Matter and argument have been supplied abundantly,
            and even to surfeit.                  --Burke.
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The Collaborative International Dictionary of English v.0.48:

Surfeit \Sur"feit\, v. i.
   1. To load the stomach with food, so that sickness or
      uneasiness ensues; to eat to excess.
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            They are as sick that surfeit with too much as they
            that starve with nothing.             --Shak.
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   2. To indulge to satiety in any gratification.
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The Collaborative International Dictionary of English v.0.48:

Surfeit \Sur"feit\, v. t. [imp. & p. p. Surfeited; p. pr. &
   vb. n. Surfeiting.]
   1. To feed so as to oppress the stomach and derange the
      function of the system; to overfeed, and produce satiety,
      sickness, or uneasiness; -- often reflexive; as, to
      surfeit one's self with sweets.
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   2. To fill to satiety and disgust; to cloy; as, he surfeits
      us with compliments. --V. Knox.
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WordNet (r) 3.0 (2006):

surfeit
    n 1: the state of being more than full [syn: surfeit,
         excess, overabundance]
    2: the quality of being so overabundant that prices fall [syn:
       glut, oversupply, surfeit]
    3: eating until excessively full [syn: repletion, surfeit]
    v 1: supply or feed to surfeit [syn: surfeit, cloy]
    2: indulge (one's appetite) to satiety

Moby Thesaurus II by Grady Ward, 1.0:

97 Moby Thesaurus words for "surfeit":
   allay, amplitude, bellyful, brim, charge, chock, choke, cloy,
   congest, congestion, cram, crowd, deluge, drench, engorge,
   engorgement, excess, fill, fill to overflowing, fill up, flood,
   flood tide, freight, full, fullness, glut, gluttonize, gorge,
   high tide, high water, hyperemia, impletion, jade, jam, jam-pack,
   lade, load, more than enough, nimiety, overabundance, overbrimming,
   overburden, overcharge, overdose, overfeed, overfill, overflow,
   overfreight, overfullness, overgorge, overindulge, overkill,
   overlade, overload, overmuch, overplus, oversaturate, overspill,
   overstuff, oversupply, overweight, pack, pad, pall, plenitude,
   plethora, ram in, repletion, sate, satiate, satiation, satiety,
   satisfaction, satisfy, saturate, saturatedness, saturation,
   saturation point, skinful, slake, snootful, soak, spring tide,
   stall, stodge, stuff, superabundance, supercharge, superfluity,
   supersaturate, supersaturation, surcharge, surplus, surplusage,
   top off, wad, weight