quash

verb

1. To defeat decisively, to suppress.

   “The army quashed the rebellion.”

   “Contrition is apt to quash or allay all worldly grief.”

   “Anne that she had been perfectly right in her proceedings, since, by quashing all idle hopes, both parties would see the necessity of conquering their foolish passion.”

   “In an early scene with her father, Alma is shown rebelling against the staid, petty and occasionally vicious life of Glorious Hill, Mississippi; her father quashes her cruelly, but it is established that Alma has it in her to defy convention.”

2. (obsolete)To crush or dash to pieces.

   “The whales / Against sharp rocks, like reeling vessels, quashed, / Though huge as mountains, are in pieces dashed.”

3. To void or suppress (a subpoena, decision, etc.).

   “In the case of an appeal against conviction the Court shall, if they allow the appeal, quash the conviction.”