REREDOS
altarpiece, reredos
(noun) a painted or carved screen placed above and behind an altar or communion table
Source: WordNet® 3.1
Etymology
Noun
reredos (plural reredoses)
(chiefly Western Christianity) A screen or decoration behind the altar in a church, usually depicting religious iconography or images, akin to the iconostasis of the Eastern Churches.
The back of an open fire-hearth, in medieval halls.
Synonyms
• retable
Anagrams
• Roeders, eroders, redoers, redorse
Source: Wiktionary
Rere"dos (rr"ds), n. Etym: [From rear + F. dos back, L. dorsum. Cf.
Dorsal.] (Arch.)
(a) A screen or partition wall behind an altar.
(b) The back of a fireplace.
(c) The open hearth, upon which fires were lighted, immediately under
the louver, in the center of ancient halls. [Also spelt reredosse.]
Fairholt.
Source: Webster’s Unabridged Dictionary 1913 Edition