anular
/anuˈlaɾ/ · B2 · verb
to annul
❌ anular = a- (to) + nul (null): make something null, void
Comes from Latin annullare, 'to make nothing', from nullus ('none'). Spot the 'nul' inside anular, as in null and void: a contract or event that is anulado has been reduced to nothing. The ring sense (anular finger) is a separate word from Latin anulus, 'ring'.