The Collaborative International Dictionary of English v.0.48:

Cassation \Cas*sa"tion\, n. [F. cassation. See Cass.]
   The act of annulling.
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         A general cassation of their constitutions. --Motley.
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   Court of cassation, the highest court of appeal in France,
      which has power to quash (Casser) or reverse the decisions
      of the inferior courts.
      [1913 Webster]