Source : Webster's Revised Unabridged Dictionary (1913)

Disclaim \Dis*claim"\, v. t.
   To disavow or renounce all part, claim, or share.
   --Blackstone.

   {Disclaim in}, {Disclaim from}, to disown; to disavow. [Obs.]
      ``Nature disclaims in thee.'' --Shak.

Disclaim \Dis*claim"\, v. t. [imp. & p. p. {Disclaimed}; p. pr.
   & vb. n. {Disclaiming}.]
   1. To renounce all claim to deny; ownership of, or
      responsibility for; to disown; to disavow; to reject.

            He calls the gods to witness their offense;
            Disclaims the war, asserts his innocence. --Dryden.

            He disclaims the authority of Jesus.  --Farmer.

   2. To deny, as a claim; to refuse.

            The payment was irregularly made, if not disclaimed.
                                                  --Milman.

   3. (Law) To relinquish or deny having a claim; to disavow
      another's claim; to decline accepting, as an estate,
      interest, or office. --Burrill.

   Syn: To disown; disavow; renounce; repudiate.

Source : WordNet®

disclaim
     v 1: renounce a legal claim or title to [ant: {claim}]
     2: make a disclaimer about; "He disclaimed any responsibility"
        [ant: {claim}]