1) An obsolete spelling of kiln.
The examples quoted illustrate the many uses such buildings had: 1498-9 Item John Kempe and John Marshall brent two lyme killes to the which they toke xxxi okes
1612 all the rest was led to the bricke kyll, at 476 loades, Brandsby
1614 abutting on ... Dirty Butts, Maltkills, Cawdwell Dyke, Skerne
1647 a kill full of new otes, Thurlstone
1704 wooll stolne out of a kill, Wetherby. Note: 1613 Killhouse - xvtine quarters of malte, Stockeld.