The Collaborative International Dictionary of English v.0.48:

Hypnotize \Hyp"no*tize\, v. t. [imp. & p. p. Hypnotized; p.
   pr. & vb. n. Hypnotizing.]
   To induce hypnotism in; to place in a state of hypnotism.
   [1913 Webster]

WordNet (r) 3.0 (2006):

hypnotize
    v 1: induce hypnosis in [syn: hypnotize, hypnotise,
         mesmerize, mesmerise]

Moby Thesaurus II by Grady Ward, 1.0:

60 Moby Thesaurus words for "hypnotize":
   absorb, absorb the attention, anesthetize, arrest, becharm,
   beguile, bewitch, captivate, carry away, cast a spell, catch,
   charm, dominate, dope, drug, enchant, engage, engage the attention,
   engage the mind, engage the thoughts, engross, engross the mind,
   engross the thoughts, enrapture, enravish, ensorcell, enthrall,
   entrance, exercise, fascinate, grab, grip, hold, hold spellbound,
   hold the interest, immerse, infatuate, intrigue, involve,
   involve the interest, lull to sleep, magnetize, mesmerize,
   monopolize, narcotize, obsess, occupy, occupy the attention,
   preoccupy, put to sleep, put under, rock to sleep, sedate, spell,
   spellbind, take up, trance, transport, vamp, witch