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.]
"to make void, annul, crush," c.1330, from O.Fr. quasser "to break, smash," from L. quassare "to shatter," frequentative of quatere "to shake" (pp. quassus). Meaning "suppress" is from M.L. quassare "make null and void," from L. cassus "empty, void," influenced by quassare.
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>