Anabaptist

Anabaptists (Greek ἀνά "again, twice" + βαπτίζω "baptize," thus "re-baptizers") are Protestant Christians of the Radical Reformation of 16th-century Europe, although some consider Anabaptism to be a distinct movement from Protestantism. The Amish, Hutterites, and Mennonites are direct descendants of the movement.