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Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: A type of truck body or wagon body composed of stakes, often easily removable from the bed, such that a flatbed can be reconverted as needed; suitable for certain kinds of loads, especially in nonhighway use, such as bales, bundles, sacks, barrels, or boxes. Full definition →
Etymology from Wiktionary, CC BY-SA 4.0.