Source : Webster's Revised Unabridged Dictionary (1913)

Valiance \Val"iance\, Valiancy \Val"ian*cy\, n. [Cf. F.
   vaillance. See {Valiant}.]
   The quality or state of being valiant; bravery; valor. [Obs.]
   ``His doughty valiance.'' --Spenser.

Source : WordNet®

valiance
     n : the qualities of a hero or heroine; exceptional or heroic
         courage when facing danger (especially in battle); "he
         showed great heroism in battle"; "he received a medal for
         valor" [syn: {heroism}, {gallantry}, {valor}, {valour}, {valorousness},
          {valiancy}]