additional (noun) — sense 2

For having received, from my Lord, an Additional, of great Importance; which was, that Owen, of his own Accord, after Examination, should compare the Case of your Majesty, (if you were Excommunicate,) to the Case, of a Prisoner, Condemned at the Barr; which Additional was subscribed by one Witness; but yet I perceived it was spoken aloud, and in the Hearing of others; I presently sent down a Copy thereof […]