From Websters 1828 Dictionary (link)

Haughty HAUGHTY, a. hau'ty. [from haught.]
1. Proud and disdainful; having a high opinion of one's self, with some contempt for others; lofty and arrogant; supercilious.
His wife was a woman of a haughty and imperious nature.
A haughty spirit goeth before a fall. Prov 16.
2. Proceeding from excessive pride, or pride mingled with contempt; manifesting pride and disdain; as a haughty air or walk.
3. Proud and imperious; as a haughty nation.
4. Lofty; bold; of high hazard; as a haughty enterprise.

From WordNet (r) 2.1 (2005) (link)

  haughty
      adj 1: having or showing arrogant superiority to and disdain of
             those one views as unworthy; "some economists are
             disdainful of their colleagues in other social
             disciplines"; "haughty aristocrats"; "his lordly manners
             were offensive"; "walked with a prideful swagger"; "very
             sniffy about breaches of etiquette"; "his mother eyed my
             clothes with a supercilious air"; "a more swaggering mood
             than usual"- W.L.Shirer [syn: disdainful, haughty,
             imperious, lordly, overbearing, prideful,
             sniffy, supercilious, swaggering]

From English Etymology Dictionary (link)

  haughty
  
  1530 (spelling changed on model of caught, etc.), from M.E. haute "high in
  one's own estimation" (1430), with adj. suffix, from O.Fr. haut "high,"
  from L. altus, with initial h- by infl. of Frank. hoh.
  
  

From Merriam-Webster's Collegiate Dictionary, 11th Edition (2003) (link)

  haughty adjective (haughtier; -est)
   Etymology: obsolete haught, from Middle English haute,
   from Anglo-French halt, haut, literally, high, from Latin altus
   — more at old Date: 15th century
    blatantly and disdainfully proud Synonyms: see proud
   • haughtily adverb • haughtiness noun
  
  

From Oxford English Reference Dictionary (link)

haughty
adj. (haughtier, haughtiest) arrogantly self-admiring and disdainful.
Derivatives:
haughtily adv. haughtiness n.
Etymology: extension of haught (adj.), earlier haut f. OF haut f. L altus high

From Collins COBUILD Advanced Learner's English Dictionary (link)

  haughty
    You use haughty to describe someone's behaviour or appearance when you disapprove of
    the fact that they seem to be very proud and to think that they are better than other people.
    He spoke in a haughty tone.
   ADJ: usu ADJ n [disapproval]
   • haughtily
    Toni looked at him rather haughtily.
   ADV: usu ADV with v, also ADV adj
  
  
  

From English Explanatory Dictionary (link)

  haughty
  ˈhɔ:tɪ adj. (haughtier, haughtiest) arrogantly self-admiring and
  disdainful. øøhaughtily adv. haughtiness n. [extension of haught (adj.),
  earlier haut f. OF haut f. L altus high]
  
  
  

From English-Old English dictionary (link)

  haughty
prutlic
  

From Webster's Revised Unabridged Dictionary (1913) (link)

  Haughty \Haugh"ty\, a. [Compar. Haughtier; superl.
     Haughtiest.] [OE. hautein, F. hautain, fr. haut high, OF.
     also halt, fr. L. altus. See Altitude.]
     1. High; lofty; bold. [Obs. or Archaic]
  
              To measure the most haughty mountain's height.
                                                    --Spenser.
  
              Equal unto this haughty enterprise.   --Spenser
  
     2. Disdainfully or contemptuously proud; arrogant;
        overbearing.
  
              A woman of a haughty and imperious nature.
                                                    --Clarendon.
  
     3. Indicating haughtiness; as, a haughty carriage.
  
              Satan, with vast and haughty strides advanced, Came
              towering.                             --Milton.

From Soule's Dictionary of English Synonyms (link)

  haughty
  a.
   Arrogant, disdainful, supercilious, assuming, proud, lofty, contemptuous.
  
  
  

From English Explanatory Dictionary (Synonyms) (link)

  haughty
  ˈhɔ:tɪ adj. arrogant, proud, superior, self-important, smug, self-satisfied, complacent,
  pretentious, conceited, egotistical, snobbish, overbearing, lofty, presumptuous, overweening,
  patronizing, supercilious, vain, condescending, contemptuous, belittling, derisive, disdainful,
  scornful, Colloq highfalutin or hifalutin, hoity-toity, stuck-up, swell-headed or swelled-headed
  or swollen-headed, high and mighty, on (his or her) high horse, snooty, la-di-da or lah-di-dah
  or la-de-da, Slang snotty, uppish, uppity: She's too haughty to have made any friends here.
  
  
  

From Moby Thesaurus II by Grady Ward, 1.0 (link)

  98 Moby Thesaurus words for "haughty":
     Olympian, aerial, airy, aloof, altitudinous, arrogant, ascending,
     aspiring, belittling, big, boastful, cavalier, clannish, cliquish,
     colossal, complacent, conceited, condescending, contemptuous,
     contumelious, derisive, detached, disdainful, distant, dominating,
     domineering, egotistic, egotistical, elevated, eminent, ethereal,
     exalted, exclusive, high, high and mighty, high-and-mighty,
     high-faluting, high-flown, high-headed, high-nosed, high-pitched,
     high-reaching, high-set, high-up, highfalutin, hoity-toity,
     indifferent, insolent, la-di-da, lofty, lordly, monumental,
     mounting, outtopping, overbearing, overlooking, overtopping,
     overweening, patronizing, presumptuous, pretentious, prominent,
     proud, purse-proud, reserved, scornful, self-important,
     self-satisfied, smug, sneering, sniffy, snobbish, snobby, snooty,
     snotty, soaring, spiring, steep, stuck-up, sublime, supercilious,
     superior, superlative, supernal, swelled-headed, topless,
     toploftical, toplofty, topping, towering, towery, uplifted, uppish,
     uppity, upreared, upstage, vain, withering