Source : Webster's Revised Unabridged Dictionary (1913)

Roke \Roke\, n. [See {Reek}.]
   1. Mist; smoke; damp [Prov. Eng.] [Written also {roak},
      {rook}, and {rouk}.]

   2. A vein of ore. [Pov.Eng.] --Halliwell.