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Thrum
THRUM [isbe]
THRUM - thrum: In Isa 38:12 the Revised Version (British and American) reads "He will cut me off from the loom," margin "thrum." "Thrum" is a technical term of weavers, denoting the threads of the warp hanging down in a loom, suiting dallah, "that which hangs down" (Song 7:5, "hair"). A misinterpretation of "hanging down" is responsible for the King James' "pining sickness."
Also see definition of "Thrum" in Word Study