The Collaborative International Dictionary of English v.0.48:

Renard \Ren"ard\ (r?n"?rd), n. [F. renard the fox, the name of
   the fox in a celebrated epic poem, and of German origin, G.
   Reinhard, OHG. Reginhard, properly, strong in counsel; regin
   counsel (akin to Goth. ragin) + hart hard. See Hard.]
   A fox; -- so called in fables or familiar tales, and in
   poetry. [Written also reynard.]
   [1913 Webster]