名詞 voussoir:

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

vous.soir

n.（名詞）
One of the wedge-shaped stones forming the curved parts of an arch or a vaulted ceiling.
拱楔塊：用于形成拱或穹窿的曲線(xiàn)部分的楔形石頭中的一塊

來(lái)源：
French
法語(yǔ)
from Old French vossoir
源自 古法語(yǔ) vossoir
from Vulgar Latin *volsôrium
源自 俗拉丁語(yǔ) *volsôrium
from *volsus
源自 *volsus
past participle of Latin volvere [to turn, roll] * see wel- 2
拉丁語(yǔ) volvere的過(guò)去分詞 [翻轉(zhuǎn)，滾動(dòng)] *參見(jiàn) wel- 2