1) An item of attire to cover the arm. It was not attached to a gown or coat and could be worn with a variety of garments.
1544 to Margarett my servante ... my beste paire of scleves, Timble
1559 I geue to Isabell Walter my sister my bed gowne & my best sleves, Otley
1565 a parre of wide sleves of clothe of golde, Temple Newsam. Note the by-name: 1335 Petrum Sleveles, Pickering.