The Collaborative International Dictionary
reredosse
Reredos \Rere"dos\ (r?r"d?s), n. [From rear + F. dos back, L. dorsum. Cf. Dorsal.] (Arch.)
A screen or partition wall behind an altar.
The back of a fireplace.
The open hearth, upon which fires were lighted, immediately under the louver, in the center of ancient halls. [Also spelt reredosse.]
--Fairholt.