The Collaborative International Dictionary of English v.0.48:

Extraneous \Ex*tra"ne*ous\, a. [L. extraneus, from extra. See
   Extra-, Strange.]
   Not belonging to, or dependent upon, a thing; without or
   beyond a thing; not essential or intrinsic; foreign; as, to
   separate gold from extraneous matter.
   [1913 Webster]

         Nothing is admitted extraneous from the indictment.
                                                  --Landor.
   -- Ex*tra"ne*ous*ly, adv.
   [1913 Webster]