- (AKA oil cloth) clothes treated with linseed, or other oils, to waterproof them.
Probably earlier than the 17th century.
The classic image of a fisherman in a yellow jacket, trousers, and a sou’wester hat. Modern oilskins can be a PVC-covered fabric or Gore-Tex. The point is that they’re waterproof and used in foul weather to keep you dry.
Rogers, J.G. (1985). Origins of Sea Terms. Mystic, CT: Mystic Seaport Museum.