excuso

Etymology
From.

Verb

 * 1) to excuse, allege in excuse, free from a charge
 * 2) to cite as an excuse or pretext or justification
 * 3) to exempt, dispense
 * 4) to justify by an excuse
 * 5) * Saint Jerome
 * Dum excusare credis, accusas
 * When you believe you are excusing yourself, you are accusing yourself.