Noun
(now historical) A tight, knee-length men's coat worn in the late 17th and early 18th century. [from 17th c.]
(now historical) A tight women's riding coat of the late 17th and early 18th century. [from 17th c.]
(now historical) Any tight-fitting garment, specifically a coat or waistcoat, of the second half of the 17th century. [from 17th c.]
Source: en.wiktionary.org