SG Heritage Dictionary

Disannulment [Noun] Webster's Dictionary 1828

1. The act of making void; as the disannulment of a law or decree.

2. Disannual differs from repeal, as the genus from the species. A repeal makes a law void by the same power that enacted it. Annulment or disannulment destroys its force and authority by repeal or by other means.

Disannulment [Noun] Webster's Dictionary 1913

Complete annulment.