1
- a short, close-fitting jacket, worn by women and children in the early 19th century（19世纪早期女子和儿童穿的一种）短紧身夹克。
1.1
- a thin woollen vest, worn by women for extra warmth in winter（女子冬天保暖穿的）薄羊毛背心。
词源
probably named after the second Earl Spencer （1758-1834）, English politician.