quash
VERB
quashed (past tense) · quashed (past participle)
reject as invalid, especially by legal procedure.
"his conviction was quashed on appeal"
synonyms:
cancel · reverse · rescind · repeal · revoke · retract · countermand · withdraw · take back · rule against · disallow · overturn · override · overrule · veto · set aside · overthrow
put an end to; suppress.
synonyms:
put an end to · stamp out · put a stop to · end · finish · get rid of · crush · put down · check · crack down on · curb · nip in the bud · thwart · frustrate · squash
https://www.bbc.co.uk/news/business-56496207"A group of 42 sub-postmasters and postmistresses will learn later whether convictions for stealing money will be quashed amid a Post Office IT scandal." BBC News 23/4/21
https://www.bbc.co.uk/news/business-56859357