from
The Collaborative International Dictionary of English v.0.48
Thrum \Thrum\ (thr[u^]m), n. [OE. thrum, throm; akin to OD.
drom, D. dreum, G. trumm, lump, end, fragment, OHG. drum end,
Icel. [thorn]r["o]mr edge, brim, and L. terminus a limit,
term. Cf. {Term}.] [Written also {thrumb}.]
1. One of the ends of weaver's threads; hence, any soft,
short threads or tufts resembling these.
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2. Any coarse yarn; an unraveled strand of rope.
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3. (Bot.) A threadlike part of a flower; a stamen.
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4. (Mining) A shove out of place; a small displacement or
fault along a seam.
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5. (Naut.) A mat made of canvas and tufts of yarn.
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{Thrum cap}, a knitted cap. --Halliwell.
{Thrum hat}, a hat made of coarse woolen cloth. --Minsheu.
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