Putrefy

from WordNet (r) 3.0 (2006)

putrefy
    v 1: become putrid; decay with an offensive smell; "organic
         matter putrefies"

from The Collaborative International Dictionary of English v.0.48

Putrefy \Pu"tre*fy\, v. t. [Written also putrify.] [imp. & p. p.
   {Putrefied}; p. pr. & vb. n. {Putrefying}.] [F. putr['e]fier;
   L. putrere to be rotten + -ficare (in. comp.) to make; cf. L.
   putrefacere. See {Putrid}, and {-fy}.]
   1. To render putrid; to cause to decay offensively; to cause
      to be decomposed; to cause to rot.
      [1913 Webster]

   2. To corrupt; to make foul.
      [1913 Webster]

            Private suits do putrefy the public good. --Bacon.
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            They would but stink, and putrefy the air. --Shak.
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   3. To make morbid, carious, or gangrenous; as, to putrefy an
      ulcer or wound.
      [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

Putrefy \Pu"tre*fy\, v. i.
   To become putrid; to decay offensively; to rot. --Isa. 1. 6.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

31 Moby Thesaurus words for "putrefy":
      break down, break up, canker, corrupt, crumble, crumble into dust,
      decay, decompose, deteriorate, disintegrate, fall into decay,
      fall to pieces, fester, gangrene, go bad, go off, go to pieces,
      mildew, mold, molder, mortify, moulder, necrose, putresce, rankle,
      rot, sphacelate, spoil, suppurate, taint, turn