Mind the peasants.
Jacket: A short coat worn on the upper body over a shirt or blouse. May be breathable, windproof, waterproof, or a combination. May also be insulated or just a shell.
Jacket: A sleeved, hip-length to waist-length garment worn on the upper body.
Jacket: From the French for jaque, a kind of tunic, possibly based on the generic term for French peasants. A short, tight-fitting coat. Keeps out wind and some cold.