annullare

Etymology
From.

Verb

 * 1) to annul, to cancel
 * 2) to annihilate, to raze, to destroy
 * 3) to vitiate, to nullify (e.g. a cure)
 * 4)  to discredit, to demean
 * 5)  to cancel (a postage stamp)
 * 6)  to neutralize (an opponent)