The Collaborative International Dictionary of English v.0.48:

Perfervid \Per*fer"vid\, a. [Pref. per- + fervid.]
   Very fervid; too fervid; glowing; ardent.
   [1913 Webster]

WordNet (r) 3.0 (2006):

perfervid
    adj 1: characterized by intense emotion; "ardent love"; "an
           ardent lover"; "a fervent desire to change society"; "a
           fervent admirer"; "fiery oratory"; "an impassioned
           appeal"; "a torrid love affair" [syn: ardent,
           fervent, fervid, fiery, impassioned, perfervid,
           torrid]