Jerkin vs. Sweater: What's the Difference?

Jerkin and Sweater Definitions
Jerkin
A close-fitting, hip-length, collarless jacket having no sleeves but often extended shoulders, belted and worn over a doublet by men especially in the 1500s.
Sweater
A garment for the upper body of wool, cotton, or synthetic yarn, typically knitted, having long sleeves, and worn in cold weather.
Jerkin
A short, close-fitting, often sleeveless coat or jacket, usually of leather.
Sweater
One that sweats, especially profusely.
Jerkin
(historical) A type of men's garment popular in the sixteenth and seventeenth centuries: a close-fitting collarless jacket, with or without sleeves.
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Sweater
Something that induces sweating; a sudorific.
Jerkin
A sleeveless jacket, usually leather; a long waistcoat.
Sweater
A knitted jacket or jersey, usually of thick wool, worn by athletes before or after exercise.
Jerkin
A jacket or short coat; a close waistcoat.
Sweater
(US) A similar garment worn for warmth.
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Jerkin
A male gyrfalcon.
Sweater
One who sweats (produces sweat).
Jerkin
A tight sleeveless and collarless jacket (often made of leather) worn by men in former times
Sweater
One who or that which causes to sweat.
Sweater
A diaphoretic remedy.
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Sweater
(historical) An exploitative middleman who subcontracted piece work in the tailoring trade.
Sweater
(archaic) One who sweats coins, i.e. removes small portions by shaking them.
Sweater
A London street ruffian in Queen Anne's time who prodded weak passengers with his sword-point.
Sweater
(transitive) To dress in a sweater.
Sweater
One who sweats.
Sweater
One who, or that which, causes to sweat
Sweater
A crocheted or knitted garment covering the upper part of the body
Sweater
A person who perspires