voussoir

(vo̵̅o̅ swär′)

noun

Archit. any of the wedge-shaped stones of which an arch or vault is built

Origin: Fr < OFr volsoir, curvature of a vault < VL *volsorium < *volsus, for L volutus, pp. of volvere, to roll: see walk

See voussoir in American Heritage Dictionary 4

noun

One of the wedge-shaped stones forming the curved parts of an arch or vaulted ceiling.

Origin:

Origin: French

Origin: , from Old French vossoir

Origin: , from Vulgar Latin *volsōrium

Origin: , from *volsus

Origin: , past participle of Latin volvere, to turn, roll; see wel-² in Indo-European roots

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