1) A type of nail, although the exact meaning is uncertain.
It was probably a regional term since the few references recorded were mostly in the north: 1415 In cc sharpelynges emptis, prec. 16d, York
1475 Et pro sharplynges, xjd, York
1548 ij.c sharplynges, 18d, York
1577 For sharplinges for naylinge the clowtes on the table feete in the chapter house, 3d, York.