Small fragments or pieces resulting from chipping; material that has been broken off or removed by chipping action.
From chipping (present participle of 'chip') + -s plural suffix; the word describes the accumulated or plural results of the chipping process.
Chippings are byproducts of human industry—whether stone chippings from masonry, wood chippings from carpentry, or paint chippings from old buildings, they're fragments that tell stories of what was worked on, which is why archaeologists and engineers study them carefully.
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