sweatersweat‧er /ˈswɛt̮ɚ/ ●●● noun [countable] 
a piece of warm wool or cotton clothing with long sleeves, which covers the top half of your body: 
She put her sweater on. a wool/cotton/cashmere sweater [Origin: 1800–1900 sweat; because it was originally worn when doing exercise, to make you sweat]
a piece of warm wool or cotton clothing with long sleeves, which covers the top half of your body: She put her sweater on. a wool/cotton/cashmere sweater [Origin: 1800–1900 sweat; because it was originally worn when doing exercise, to make you sweat]
