voussoir

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

  1. noun wedge-shaped stone building block used in constructing an arch or vault

Etymology

Unadapted borrowing from French voussoir, from Old French vosoir, from Vulgar Latin *volsorium, from *volsus, from Latin volvō (“to roll”).

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