predella
/prɪˈdelə/noun
1
- a step or platform on which an altar is placed祭坛平台。
2
- a raised shelf above an altar祭坛座架。
2.1
- a painting or sculpture on this, typically forming an appendage to an altarpiece附饰画（或雕塑）（尤指构成祭坛后壁画饰或雕塑的附件）。
词源
mid 19th cent.: from Italian， literally 'stool'.