The Collaborative International Dictionary of English v.0.48:

outfangthef \out*fang"thef\ (out*f[a^]ng"th[e^]f), n. [AS.
   [=u]t-fangen-[thorn]e['o]f. See Out, Fang, v. t., and
   Thief.] (Anglo-Saxon & O. Eng. Law)
      (a) A thief from without or abroad, taken within a lord's
          fee or liberty.
      (b) The privilege of trying such a thief. --Burrill.
          [1913 Webster]