Origin: ME rerdos, aphetic < Anglo-Fr areredos < OFr arere (see arrears) + dos, back (see dosser)
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- A decorative screen or facing on the wall at the back of an altar; a retable.
- The back of an open hearth of a fireplace.
Origin: Middle English, from Anglo-Norman, from areredos : arere, behind (Latin ad-, ad- + Latin retrō, backward; see re- in Indo-European roots) + dos, back (from Latin dorsum).