Source : Webster's Revised Unabridged Dictionary (1913)

Odin \O"din\, n. [Icel. ?; prob.akin to E. wood, a. See
   {Wednesday}.] (Northern Myth.)
   The supreme deity of the Scandinavians; -- the same as
   {Woden}, of the German tribes.

         There in the Temple, carved in wood, The image of great
         Odin stood.                              --Longfellow.

Source : WordNet®

Odin
     n : (Norse mythology) ruler of the Aesir; supreme god of war and
         poetry and knowledge and wisdom (for which he gave an
         eye) and husband of Frigg; identified with the Teutonic
         Wotan