The Collaborative International Dictionary of English v.0.48:

Griff \Griff\, n.
   A person of mixed blood.
   [Webster 1913 Suppl.]

The Collaborative International Dictionary of English v.0.48:

Griff \Griff\, n. [Cf. Gripe.]
   1. Grasp; reach. [Obs.]
      [1913 Webster]

            A vein of gold ore within one spade's griff.
                                                  --Holland.
      [1913 Webster]

   2. [Cf. F. griffe, G. griff, prop., a grasping.] (Weaving) An
      arrangement of parallel bars for lifting the hooked wires
      which raise the warp threads in a loom for weaving figured
      goods. --Knight.
      [1913 Webster]