The Collaborative International Dictionary of English v.0.48:

Repent \Re"pent\ (r?"p?nt), a. [L. repens, -entis, creeping, p.
   pr. of repere to creep.]
   1. (Bot.) Prostrate and rooting; -- said of stems. --Gray.
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   2. (Zool.) Same as Reptant.
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The Collaborative International Dictionary of English v.0.48:

Repent \Re*pent"\ (r?-p?nt"), v. i. [imp. & p. p. Repented; p.
   pr. & vb. n. Repenting.] [F. se repentir; L. pref. re- re-
   + poenitere to make repent, poenitet me it repents me, I
   repent. See Penitent.]
   1. To feel pain, sorrow, or regret, for what one has done or
      omitted to do.
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            First she relents
            With pity; of that pity then repents. --Dryden.
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   2. To change the mind, or the course of conduct, on account
      of regret or dissatisfaction.
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            Lest, peradventure, the people repent when they see
            war, and they return to Egypt.        --Ex. xiii.
                                                  17.
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   3. (Theol.) To be sorry for sin as morally evil, and to seek
      forgiveness; to cease to love and practice sin.
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            Except ye repent, ye shall likewise perish. --Luke
                                                  xii. 3.
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The Collaborative International Dictionary of English v.0.48:

Repent \Re*pent"\, v. t.
   1. To feel pain on account of; to remember with sorrow.
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            I do repent it from my very soul.     --Shak.
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   2. To feel regret or sorrow; -- used reflexively.
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            My father has repented him ere now.   --Dryden.
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   3. To cause to have sorrow or regret; -- used impersonally.
      [Archaic] "And it repented the Lord that he had made man
      on the earth." --Gen. vi. 6.
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WordNet (r) 3.0 (2006):

repent
    v 1: turn away from sin or do penitence [syn: repent, atone]
    2: feel remorse for; feel sorry for; be contrite about [syn:
       repent, regret, rue]