The Collaborative International Dictionary of English v.0.48:

Remorse \Re*morse"\ (r?*m?rs"), n. [OE. remors, OF. remors,F.
   remords, LL. remorsus, fr. L. remordere, remorsum, to bite
   again or back, to torment; pref. re- re- + mordere to bite.
   See Morsel.]
   1. The anguish, like gnawing pain, excited by a sense of
      guilt; compunction of conscience for a crime committed, or
      for the sins of one's past life. "Nero will be tainted
      with remorse." --Shak.
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   2. Sympathetic sorrow; pity; compassion.
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            Curse on the unpardoning prince, whom tears can draw
            To no remorse.                        --Dryden.
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            But evermore it seem'd an easier thing
            At once without remorse to strike her dead.
                                                  --Tennyson.
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   Syn: Compunction; regret; anguish; grief; compassion. See
        Compunction.
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