se·di·le 
(sĭ-dīlē)
(sĭ-dīlē)n. pl. se·di·lia (-dĭlyə, -dĭlē-ə)
One of a set of seats provided in a church for the use of the presiding clergy, usually three in number and located on the liturgical south side of the chancel, often in a niche built into the wall.
[Latin sedīle, seat, from sedēre, to sit; see sed- in the Appendix of Indo-European roots.]