sedilia
/seˈdaɪlɪə/plural noun
(sing. sedile /-lɪ/)
- a group of stone seats for clergy in the south chancel wall of a church, usually three in number and often canopied and decorated（教堂圣坛南侧的）祭司席。
词源
late 18th cent.: from Latin, 'seat', from sedere 'sit'.