quash

1 ENTRIES FOUND:
quash /ˈkwɑːʃ/ verb
quashes; quashed; quashing
quash
/ˈkwɑːʃ/
verb
quashes; quashed; quashing
Britannica Dictionary definition of QUASH
[+ object]
1 
: to stop (something) from continuing by doing or saying something
2 
law : to decide that (a ruling, decision, etc.) is wrong and no longer valid