n. a belt or waistband, often of worsted and of bright design, as the L'Assomption sash, characteristic of French Canada and long identified with the voyageurs and Métis. [See picture at L'Assomption sash.]
1880  (1893)  . . . I managed to fasten the end of the sled-rope which I held in my hand to my sash-belt, which was tied tightly around my moose-skin coat. . . .