The Collaborative International Dictionary of English v.0.48:

Humiliate \Hu*mil"i*ate\, v. t. [imp. & p. p. Humiliated; p.
   pr. & vb. n. Humiliating.] [L. humiliatus, p. p. of
   humiliare. See Humble.]
   To reduce to a lower position in one's own eyes, or in the
   eyes of others; to cause a loss of pride or dignity; to
   humble; to mortify.
   [1913 Webster]

         We stand humiliated rather than encouraged. --M.
                                                  Arnold.
   [1913 Webster]

WordNet (r) 3.0 (2006):

humiliate
    v 1: cause to feel shame; hurt the pride of; "He humiliated his
         colleague by criticising him in front of the boss" [syn:
         humiliate, mortify, chagrin, humble, abase]

Moby Thesaurus II by Grady Ward, 1.0:

69 Moby Thesaurus words for "humiliate":
   abase, affront, beat down, bend, break, break down,
   bring into discredit, bring low, bring shame upon, bring to terms,
   call names, cast down, cast reproach upon, conquer, crush, debase,
   deflate, defrock, degrade, demean, deplume, disconcert, discredit,
   disgrace, dishonor, disoblige, displume, disturb, dump on,
   embarrass, fleer at, flout, gibe at, give offense to, humble,
   hurl a brickbat, impute shame to, insult, jeer at, jibe at,
   let down, lower, master, mock, mortify, offend, outrage,
   overmaster, overwhelm, pillory, put down, put out, put to shame,
   quell, reduce, reflect discredit upon, reproach, scoff at, shame,
   sink, subdue, suppress, taunt, trample underfoot, tread underfoot,
   treat with indignity, tyrannize, unfrock, unman