The Collaborative International Dictionary of English v.0.48:

Bewitch \Be*witch"\, v. t. [imp. & p. p. Bewitched; p. pr. &
   vb. n. Bewitching.]
   1. To gain an ascendency over by charms or incantations; to
      affect (esp. to injure) by witchcraft or sorcery.
      [1913 Webster]

            See how I am bewitched; behold, mine arm
            Is like a blasted sapling withered up. --Shak.
      [1913 Webster]

   2. To charm; to fascinate; to please to such a degree as to
      take away the power of resistance; to enchant.
      [1913 Webster]

            The charms of poetry our souls bewitch. --Dryden.
      [1913 Webster]

   Syn: To enchant; captivate; charm; entrance.
        [1913 Webster]

WordNet (r) 3.0 (2006):

bewitched
    adj 1: under a spell [syn: bewitched, ensorcelled]

Moby Thesaurus II by Grady Ward, 1.0:

70 Moby Thesaurus words for "bewitched":
   agape, aghast, agog, all agog, amazed, astonished, astounded,
   at gaze, awed, awestruck, becharmed, beguiled, bewildered,
   breathless, captivated, charmed, confounded, dumbfounded,
   dumbstruck, enamored, enchanted, enraptured, enravished,
   enthralled, entranced, fascinated, flabbergasted, gaping, gauping,
   gazing, hag-ridden, heartsmitten, hypnotized, in awe, in awe of,
   infatuate, infatuated, lost in wonder, magical, marveling,
   mesmerized, miraculous, necromantic, obsessed, open-eyed,
   openmouthed, overwhelmed, popeyed, possessed, prodigious, puzzled,
   rapt in wonder, smitten, spellbound, staggered, staring, stupefied,
   surprised, thaumaturgic, thunderstruck, under a charm, wide-eyed,
   witch-charmed, witch-held, witch-struck, witched, wonder-struck,
   wonder-working, wondering, wondrous