The story
- Latin · derived fromannullō“annihilate, annul”
- Old French · derived fromanuller
- Middle English · inherited fromannullen
- English todayannul
From Middle English annullen, from Old French anuller, from Latin annullō (“annihilate, annul”), from ad (“to”) + nūllus (“none, not any”).
Etymology from Wiktionary, CC BY-SA 4.0.