faldstool
/ˈfɔːldstuːl/noun
1
- a folding chair used by a bishop when not occupying the throne or when officiating in a church other than his own（主教离开教座或在别的教堂里主持宗教仪式时用的）折叠椅。
2
- a small movable folding desk or stool for kneeling at prayer（祈祷时用的可移动折叠）跪几; 跪凳。
词源
late Old English fældestōl, of Germanic origin, from the base of FOLD1 and stool, influenced by medieval Latin faldistolium, from Germanic.