[f. ALTER + -ER1.] He who or that which alters.
1583. Golding, Calvin on Deut., cxcv. 1214. They themselues were the alterers of Gods order.
1683. Salmon, Dor. Med., I. 115. If it be an alterer only.
1781. Ann. Reg., 168/2. He was the alterer of Antony and Cleopatra acted at Drury Lane.