The act of confirming or strengthening; the act of
establishing, ratifying, or sanctioning; as, the confirmation of an
appointment.

That which confirms; that which gives new strength or
assurance; as to a statement or belief; additional evidence; proof;
convincing testimony.

A conveyance by which a voidable estate is made sure
and not voidable, or by which a particular estate is increased; a
contract, express or implied, by which a person makes that firm and
binding which was before voidable.