The Collaborative International Dictionary of English v.0.48:

Elate \E*late"\, a. [L. elatus elevated, fig., elated, proud
   (the figure, perh., being borrowed from a prancing horse); e
   out + latus (used as p. p. of ferre to bear), for tlatus, and
   akin to E. tolerate. See Tolerate, and cf. Extol.]
   [1913 Webster]
   1. Lifted up; raised; elevated.

            With upper lip elate.                 --Fenton.
      [1913 Webster]

            And sovereign law, that State's collected will,
            O'er thrones and globes, elate,
            Sits empress, crowning good, repressing ill. --Sir
                                                  W. Jones.
      [1913 Webster]

   2. Having the spirits raised by success, or by hope; flushed
      or exalted with confidence; elated; exultant.
      [1913 Webster]

            O, thoughtless mortals! ever blind to fate,
            Too soon dejected, and dejected, and too soon elate.
                                                  --Pope.
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            Our nineteenth century is wonderfully set up in its
            own esteem, wonderfully elate at its progress.
                                                  --Mrs. H. H.
                                                  Jackson.

   Syn: Puffed up; lofty; proud; haughty; exalted; inspirited;
        transported; delighted; overjoyed.
        [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Elate \E*late"\, v. t. [imp. & p. p. Elated; p. pr. & vb. n.
   Elating.]
   1. To raise; to exalt. [R.]
      [1913 Webster]

            By the potent sun elated high.        --Thomson.
      [1913 Webster]

   2. To exalt the spirit of; to fill with confidence or
      exultation; to elevate or flush with success; to puff up;
      to make proud.
      [1913 Webster]

            Foolishly elated by spiritual pride.  --Warburton.
      [1913 Webster]

            You ought not be elated at the chance mishaps of
            your enemies.                         --Jowett
                                                  (Thucyd. ).
      [1913 Webster]

WordNet (r) 3.0 (2006):

elate
    v 1: fill with high spirits; fill with optimism; "Music can
         uplift your spirits" [syn: elate, lift up, uplift,
         pick up, intoxicate] [ant: cast down, deject,
         demoralise, demoralize, depress, dismay,
         dispirit, get down]

Moby Thesaurus II by Grady Ward, 1.0:

21 Moby Thesaurus words for "elate":
   brighten, buoy, cheer, cheer up, delight, do proud, elevate,
   encourage, exalt, excite, exhilarate, flush, gladden, gratify,
   inspire, lift, make proud, overjoy, set up, stimulate, uplift