The Collaborative International Dictionary of English v.0.48:

Arras \Ar"ras\, n. [From Arras the capital of Artois, in the
   French Netherlands.]
   Tapestry; a rich figured fabric; especially, a screen or
   hangings of heavy cloth with interwoven figures.
   [1913 Webster]

         Stateliest couches, with rich arras spread. --Cowper.
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         Behind the arras I'll convey myself.     --Shak.
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The Collaborative International Dictionary of English v.0.48:

Arras \Ar"ras\, v. t.
   To furnish with an arras. --Chapman.
   [1913 Webster]

WordNet (r) 3.0 (2006):

arras
    n 1: a wall hanging of heavy handwoven fabric with pictorial
         designs [syn: tapestry, arras]