Abrogate
Definition: to abolish by authoritative action; to fail to do what is required by
This feels like a formal way to say “dissolved” or “terminated.”
Why I Looked It Up
In The Prize:
In view of the collapse of the Export Association, our as-is agreement with Royal Dutch should be abrogated.
Postscript
Added on
In Team of Rivals, when discussing the Liberty Party:
The abrogation of slavery was their primary goal.