\Sley\, n. (Weaving)
The number of ends per inch in the cloth, provided each dent
in the reed in which it was made contained as equal number of
ends. --E. Whitworth.

\Sley\, n. [AS. sl?, fr. sle['a]n 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}.