Jurat is Latin for “to swear.” A jurat is a certificate attached to an affidavit or deposition to signify that the affidavit or deposition was properly made before a duly authorized officer. A jurat usually says "Subscribed and sworn to before me this ___ day of [month], [year],” followed by the signature and title of the officer.
Note that a jurat is not part of the affidavit or deposition itself.
[Last updated in July of 2021 by the Wex Definitions Team]