clerestory

n. 天窗, 高侧窗, 长廊, 楼座, 火车车厢顶的通风部分

clerestory 也作 clear.sto.ry

n.（名词）
【复数】 clere.sto.ries
The upper part of the nave, transepts, and choir of a church, containing windows.
纵向天窗，顶楼：教堂正厅、袖廊及唱诗班席位的上部，包括窗户
An upper portion of a wall containing windows for supplying natural light to a building.
高侧窗：墙的上半部分,装有给建筑物提供自然光线的窗户

来源：
Middle English clerestorie
中古英语 clerestorie
perhaps cler [giving light, clear] * see clear
可能为 cler [提供光线，清晰] *参见 clear
storie [tier] * see story 2
storie [一层] *参见 story2