Sley (slā), n. [AS. slǣ, fr. sleán to strike. See Slay, v. t.] 1. A weaver's reed. [Spelt also slaie.]
2. A guideway in a knitting machine. Knight.
Sley, v. t. To separate or part the threads of, and arrange them in a reed; — a term used by weavers. See Sleave, and Sleid.