The word "full" is from the Anglo-Saxon fullian, meaning "to whiten." To full is to press or scour cloth in a mill. This art is one of great antiquity. Mention is made of "fuller's soap" ( Malachi 3:2 ), and of "the fuller's field" ( 2 Kings 18:17 ). At his transfiguration our Lord's rainment is said to have been white "so as no fuller on earth could white them" ( Mark 9:3 ). En-rogel (q.v.), meaning literally "foot-fountain," has been interpreted as the "fuller's fountain," because there the fullers trod the cloth with their feet.