to put down or suppress completely; quell; subdue: to quash a rebellion.
2.
to make void, annul, or set aside (a law, indictment, decision, etc.).
Origin: 1300–50; ME quashen to smash, break, overcome, suppress < OF quasser, in part < L quassāre to shake (freq. of quatere to shake; cf. concussion); in part < LL cassāre to annul, deriv. of L cassus empty, void
quash 1 (kwŏsh) tr.v.
quashed, quash·ing, quash·es To set aside or annul, especially by judicial action.
[Middle English quassen, from Old French casser, quasser, from Medieval Latin quassāre, alteration (influenced by quassāre, to shatter) of cassāre, from Latin cassus, empty, void; see kes- in Indo-European roots.]
quash 2 (kwŏsh) tr.v.
quashed, quash·ing, quash·es To put down or suppress forcibly and completely: quash a rebellion.
[Middle English quashen, from Old French quasser, from Medieval Latin quassāre, to shatter, from Latin; see squash2.]
Main Entry: quash Pronunciation: 'kwäsh, 'kwosh Function: transitive verb Etymology: Anglo-French quasser, from Middle French casserquasser, from Late Latin cassare, from Latin cassus void : to make void :ANNUL 2 <quash a subpoena>