The Collaborative International Dictionary of English v.0.48:

Fetid \Fet"id\ (? or ?; 277), a. [L. fetidus, foetidus, fr.
   fetere, foetere, to have an ill smell, to stink: cf. F.
   f['e]tide.]
   Having an offensive smell; stinking.
   [1913 Webster]

         Most putrefactions . . . smell either fetid or moldy.
                                                  --Bacon.
   [1913 Webster]

WordNet (r) 3.0 (2006):

fetid
    adj 1: offensively malodorous; "a foul odor"; "the kitchen
           smelled really funky" [syn: fetid, foetid, foul,
           foul-smelling, funky, noisome, smelly,
           stinking, ill-scented]