sedilia
Concise Oxford English Dictionary © 2008 Oxford University Press:
sedilia /sɪˈdɪlɪə/
▶plural noun (sing. sedile /sɪˈdʌɪli/) a group of three stone seats for clergy in the south chancel wall of a church.
– origin C18: from L., ‘seat’.
'sedilia' also found in these Oxford entries:

