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  • From Old French arche, from Vulgar Latin arca (unattested), from Latin arcus bow. Structural elements, typically curved, spanning openings and transmitting vertical loads to either side of the opening. Also, structural elements or freestanding structures that resemble arches or act structurally like arches. Depending on their shape, there are many types of arches, e.g., pointed arches, round arches…

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