The Collaborative International Dictionary of English v.0.48:

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