2 Verbs to Use for the Word acquittances

The Sultan, however, still refused to allow him to leave Aden till he had given him written acquittance of all claims on account of the ship; a document was accordingly signed, as he says, under compulsion, to the effect that he made no claim against the Sultan, but with a full reservation of his claim for redress from the supercargo, who had wrecked the ship and embezzled the goods saved from her.

R. [Rémond] writ to me some time ago, to say if I would immediately send him £2,000 sterling, he would send me an acquittance.

2 Verbs to Use for the Word  acquittances