Source : Webster's Revised Unabridged Dictionary (1913)

Rodomont \Rod"o*mont\, n. [F. rodomont, It. rodomonte, fr.
   Rodomonte, Rodamonte, a boasting hero in the ``Orlando
   Furioso'' of Ariosto, and the ``Orlando Innamorato'' of
   Bojardo; properly, one who rolls away mountains; Prov. It.
   rodare to roll away (fr. L. rota a wheel) + It. monte a
   mountain, L. mons. See {Rotary}, {Mount}, n.]
   A vain or blustering boaster; a braggart; a braggadocio.
   --Sir T. Herbert.

Rodomont \Rod"o*mont\, a.
   Bragging; vainly boasting.