to put down or suppress completely; quell; subdue: to quash a rebellion.
to make void, annul, or set aside (a law, indictment, decision, etc.).
Origin of quash
1300–50; Middle English quashen to smash, break, overcome, suppress <Old French quasser, in part <Latin quassāre to shake (frequentative of quatere to shake; cf. concussion); in part <Late Latin cassāre to annul, derivative of Latin cassus empty, void
A new effort to ban Native mascots was quashed by the state school board this year.
Hundreds Of Schools Are Still Using Native Americans As Team Mascots|Hope Allchin|October 12, 2020|FiveThirtyEight
Scoring those long-term contracts in a competitive global market seemed unlikely, even before the pandemic quashed demand for North America’s highly priced gas.
It’s His Land. Now a Canadian Company Gets to Take It.|by Lee van der Voo for ProPublica|October 1, 2020|ProPublica
Within Silicon Valley itself, unease over how big tech may quash smaller tech businesses has also grown.
Majority of tech employees and potential founders say big tech needs more regulation|Lucinda Shen|September 4, 2020|Fortune
Researchers want to know how elite controllers quash the virus for long periods of time.
In a first, a person’s immune system fought HIV — and won|Tina Hesman Saey|August 26, 2020|Science News
Its draconian lockdown measures had quashed the virus at home so effectively that doctors couldn’t find patients to fully test their vaccine on.
Every country wants a covid-19 vaccine. Who will get it first?|Katie McLean|August 13, 2020|MIT Technology Review
Fergie did nothing to quash rumors of remarriage when asked about the controversial subject this weekend, reports Tom Sykes.
Fergie Remarriage Rumors Heat Up as She Says, ‘Andrew Will Always Be My Prince!’|Tom Sykes|September 30, 2013|DAILY BEAST
Egyptian forces have also launched a series of coordinated operations in Sinai in an attempt to quash rising insurgency.
A Bloody Assassination Attempt in Egypt|Sophia Jones|September 5, 2013|DAILY BEAST
But despite rumors of a Game of Thrones theme, Parker was quick to quash the speculation.
Sean Parker Weds Alexandra Lenas, ‘Game of Thrones’ Theme a Mystery|Nina Strochlic|June 2, 2013|DAILY BEAST
It all seems perfectly choreographed to quash the assumption that she is no more than a little flirt.
Petraeus Affair Stereotypes: The General, The Flirt And The Harlot|Robin Givhan|November 15, 2012|DAILY BEAST
The Greater Israel crowd, however, is ready to sacrifice Israeli democracy to quash divergent views.
Ambassador Oren Gets it Right on "Pro-Israel"|Lara Friedman|May 10, 2012|DAILY BEAST
If he had, say fifteen hundred dollars, he could quash the indictment against him.
The Four Pools Mystery|Jean Webster
I know you didn't, but you implied it, and I want to quash any such suggestion at once.
The Come Back|Carolyn Wells
Five minutes in hell will quash forever all the infidel theories that ever were propounded in this world.
The Great Commission|C. H. (Charles Henry) Mackintosh
Roebuck insists on it; and Disraeli announced his determined opposition to any attempt to quash it.
The Greville Memoirs (Third Part) Volume I (of II)|Charles Cavendish Fulke Greville
They moved to quash the indictment on which he was brought to trial.