The Collaborative International Dictionary of English v.0.48:

Feverous \Fe"ver*ous\, a. [Cf.F. fi['e]vreux.]
   1. Affected with fever or ague; feverish.
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            His heart, love's feverous citadel.   --Keats.
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   2. Pertaining to, or having the nature of, fever; as, a
      feverous pulse.
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            All maladies . . . all feverous kinds. --Milton.
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   3. Having the tendency to produce fever; as, a feverous
      disposition of the year. [R.] --Bacon.
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WordNet (r) 3.0 (2006):

feverous
    adj 1: having or affected by a fever [syn: feverish,
           feverous]