Source : Webster's Revised Unabridged Dictionary (1913)

Fervent \Fer"vent\, a. [F. fervent, L. fervens, -entis. p. pr.
   of fervere o the boiling hot, to boil, glow.]
   1. Hot; glowing; boiling; burning; as, a fervent summer.

            The elements shall melt with fervent heat. --2 Pet.
                                                  iii. 10.

   2. Warm in feeling; ardent in temperament; earnest; full of
      fervor; zealous; glowing.

            Not slothful in business; fervent in spirit. --Rom.
                                                  iii. 11.

            So spake the fervent angel.           --Milton.

            A fervent desire to promote the happiness of
            mankind.                              --Macaulay.
      -- {Fer"vent*ly}, adv. -- {Fer"vent*ness}, n.

            Laboring fervently for you in prayers. --Col. iv.
                                                  12.

Source : WordNet®

fervent
     adj 1: characterized by intense emotion; "ardent love"; "an ardent
            lover"; "a burning enthusiasm"; "a fervent desire to
            change society"; "a fervent admirer"; "fiery oratory";
            "an impassioned appeal"; "a torrid love affair" [syn:
            {ardent}, {burning(a)}, {fervid}, {fiery}, {impassioned},
             {perfervid}, {torrid}]
     2: sincerely or intensely felt; "a cordial regard for his
        visitor's comfort"; "a cordial abhorrence of waste"; "a
        fervent hope" [syn: {cordial}]
     3: extremely hot; "the fervent heat...merely communicated a
        genial warmth to their half-torpid systems"- Nathaniel
        Hawthorne; "set out...when the fervid heat subsides"-
        Frances Trollope [syn: {fervid}]