A type of wooden bolt or fastener used in shipbuilding or heavy construction, possibly with a bay-colored or distinctive appearance.
From 'bay' (a reddish-brown color, or possibly a place name) plus 'bolt' (a fastening device). An archaic or regional nautical/construction term with uncertain modern usage.
Words like 'baybolt' vanish as technologies change—the specific fasteners used in wooden ships are no longer needed, so the precise terminology for them simply disappears from living language.
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