defease:
Defeasance (or defeazance) (French: défaire, to undo), in law, an instrument which defeats the force or operation of some other deed or estate; as distinguished from condition, that which in the same deed is called a condition is a defeasance in another deed.
Noted in “Defend Norms Don’t Violate Them“, Paul Rosenzweig, Lawfare:
Again, I shudder at the prospect of presidential subordinates who learn from this behavior that it is OK to unilaterally defease the President of his prerogatives if it is for a good cause.
In the context of the definition, Paul’s usage makes me uneasy.