The yarn or thread used in weaving as the weft, which runs horizontally across the loom perpendicular to the warp threads.
From Old English 'webb' meaning woven fabric, related to 'weave.' The word contracted over time from 'web' to 'abb,' maintaining its connection to the fundamental process of textile creation that has remained largely unchanged for millennia.
This humble word connects us to one of humanity's oldest technologies - every piece of woven fabric contains both warp and abb threads, making this term literally fundamental to civilization. The word survives mainly in technical weaving contexts, preserving ancient knowledge in modern textile production.
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