Affidavit

An affidavit is a formal written statement of facts, made voluntarily and confirmed by the oath or affirmation of the party making it, taken before a person having authority to administer the oath or affirmation, (e.g., a Notary Public). Making false statements under oath in an affidavit can result in perjury charges. "Affidavit" is the Medieval Latin word for “he who has declared upon oath.”