newel

詳細解釋：

new.el

n.（名詞）
A vertical support at the center of a circular staircase.
螺旋樓梯中柱：環行樓梯中間的垂直支撐
A post that supports a handrail at the bottom or at the landing of a staircase.
樓梯柱：在樓梯底部支撐扶手的地方

來源：
Middle English nouel, niewel
中古英文 nouel, niewel
from Old French noiel
源自 古法文 noiel
from Vulgar Latin *nôdellus [little knot]
源自 俗拉丁語 *nôdellus [小結]
diminutive of Latin nôdulus [diminutive of] nôdus [knot] * see node
拉丁語 nôdulus的小後綴 [] nôdus的小後綴 [結] *參見 node