Source : Webster's Revised Unabridged Dictionary (1913)

Disallow \Dis`al*low"\, v. t. [imp. & p. p. {Disallowed}; p. pr.
   & vb. n. {Disallowing}.] [Pref. dis- + allow: cf. OF.
   desalouer, desloer, to blame, dissuade.]
   To refuse to allow; to deny the force or validity of; to
   disown and reject; as, the judge disallowed the executor's
   charge.

         To whom coming, as unto a living stone, disallowed
         indeed of men, but chosen of God.        --1 Pet. ii.
                                                  4.

         That the edicts of C[ae]sar we may at all times
         disallow, but the statutes of God for no reason we may
         reject.                                  --Milton.

   Note: This verb was sometimes followed by of; as, ``What
         follows, if we disallow of this?'' --Shak. See {Allow}.

   Syn: To disapprove; prohibit; censure; reject.

Source : WordNet®

disallow
     v : command against; "I forbid you to call me late at night";
         "Mother vetoed the trip to the chocolate store" [syn: {forbid},
          {prohibit}, {interdict}, {proscribe}, {veto}] [ant: {permit},
          {permit}]