Source : Webster's Revised Unabridged Dictionary (1913)

Dagon \Da"gon\ (d[=a]"g[o^]n), [Heb. D[=a]gon, fr. dag a fish:
   cf. Gr. Dagw`n.]
   The national god of the Philistines, represented with the
   face and hands and upper part of a man, and the tail of a
   fish. --W. Smith.

         This day a solemn feast the people hold To Dagon, their
         sea idol.                                --Milton.

         They brought it into the house of Dagon. --1 Sam. v. 2.

Dagon \Dag"on\ (d[a^]g"[o^]n), n. [See {Dag} a loose end.]
   A slip or piece. [Obs.] --Chaucer.

Source : WordNet®

Dagon
     n : god of agriculture and the earth; national god of
         Philistines