The Collaborative International Dictionary of English v.0.48:

Gye \Gye\ (g[imac] or g[=e]), v. t. [OF. guier; of German
   origin. See Guide, and cf. Guy.]
   To guide; to govern. [Obs.]
   [1913 Webster]

         Discreet enough his country for to gye.  --Chaucer.
   [1913 Webster]