quash
KWOSHverbMeaning to put a complete stop to; to cancel officially
Memory hook QUASH = SQUASH it flat. The judge brings her gavel down on the unfair rule and squashes it flat: she quashes it.
The coach quashed the rumor that the team was moving to another city.
In context The higher court quashed the earlier ruling, declaring it invalid, so the case had to be heard again from the very beginning.
Similar squash, put down, cancel, overturn
Opposite uphold, approve