Noah Webster
Annul
ANNUL', verb transitive [Latin ad nullum, to nothing.]
1. To make void; to nullify; to abrogate; to abolish; used appropriately of laws, decrees, edicts, decisions of courts, or other established rules, permanent usages, and the like, which are made void by competent authority.
2. To reduce to nothing; to obliterate. [Not is much use.]