The Collaborative International Dictionary of English v.0.48:

Rot \Rot\, v. i. [imp. & p. p. Rotted; p. pr. & vb. n.
   Rotting.] [OE. rotien, AS. rotian; akin to D. rotten, Prov.
   G. rotten, OHG. rozz?n, G. r["o]sten to steep flax, Icel.
   rotna to rot, Sw. ruttna, Dan. raadne, Icel. rottin rotten.
   [root]117. Cf. Ret, Rotten.]
   1. To undergo a process common to organic substances by which
      they lose the cohesion of their parts and pass through
      certain chemical changes, giving off usually in some
      stages of the process more or less offensive odors; to
      become decomposed by a natural process; to putrefy; to
      decay.
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            Fixed like a plant on his peculiar spot,
            To draw nutrition, propagate, and rot. --Pope.
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   2. Figuratively: To perish slowly; to decay; to die; to
      become corrupt.
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            Four of the sufferers were left to rot in irons.
                                                  --Macaulay.
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            Rot, poor bachelor, in your club.     --Thackeray.
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   Syn: To putrefy; corrupt; decay; spoil.
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WordNet (r) 3.0 (2006):

rotted
    adj 1: damaged by decay; hence unsound and useless; "rotten
           floor boards"; "rotted beams"; "a decayed foundation"
           [syn: decayed, rotten, rotted]