jerkinEnglishMerriam-Webster Dictionaryjerkin nounjer·kin | \ ˈjər-kən \ a close-fitting hip-length usually sleeveless jacket Definition : a close-fitting hip-length usually sleeveless jacketFirst Known Use1519, in the meaning defined aboveHistory and Etymologyorigin unknownjerkin nounjer·kin | \ ˈjər-kən \ a close-fitting hip-length usually sleeveless jacket Definition : a close-fitting hip-length usually sleeveless jacketFirst Known Use1519, in the meaning defined aboveHistory and Etymologyorigin unknown