Webster's Revised Unabridged Dictionary · 1913

Sleave

Sleave (slēv) , noun

[Compare Danish sloif, a knot loop, Swedish slejf, German schleife a knot, sliding knot, and English slip, v.i.]

(a)
The knotted or entangled part of silk or thread.
(b)
Silk not yet twisted; floss; -- called also sleave silk.
Sleep that knits up the ravell'd sleave of care. — Shakespeare

Sleave (slēvd) , transitive verb

To separate, as threads; to divide, as a collection of threads; to sley; -- a weaver's term.