'Revoke' in the Bible

and she said, "If it is good to the king, and if I have found favor before him, and if the king is pleased with this matter, and {I have his approval}, let [an edict] be written to revoke the letters of the plans of Haman son of Hammedatha the Agagite, which he wrote to destroy the Jews that [are] in all the provinces of the king.