noun

1. in Scotland, a flat, brimless cap, worn by men and boys
2. 1. a hat with a chin ribbon, worn by children and women
   2. Informal any hat worn by women or girls
3. 1. a metal covering, hood, or cowl, as over a fireplace, stove, or chimney for draft or ventilation
   2. Brit. an automobile hood
4. Naut. a strip of canvas fastened by lacing to the bottom of a sail to increase sail area

Etymology: ME & OFr bonet < ML bonitum aphetic < abonnis, kind of cap

transitive verb