The Collaborative International Dictionary of English v.0.48:

Overrule \O`ver*rule"\, v. t. [imp. & p. p. Overruled; p. pr.
   & vb. n. Overruling.]
   1. To rule over; to govern or determine by superior
      authority.
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   2. To rule or determine in a contrary way; to decide against;
      to abrogate or alter; as, God overrules the purposes of
      men; the chairman overruled the point of order.
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            His passion and animosity overruled his conscience.
                                                  --Clarendon.
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            These [difficulties] I had habitually overruled.
                                                  --F. W.
                                                  Newman.
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   3. (Law) To supersede, reject, annul, or rule against; as,
      the plea, or the decision, was overruled by the court.
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