The Collaborative International Dictionary
Valiant \Val"iant\, a. [OE. valiant, F. vaillant, OF. vaillant, valant, originally p. pr. of OF. & F. valoir to be worth, L. valere to be strong. See Wield, and cf. Avail, Convalesce, Equivalent, Prevail, Valid.]
Vigorous in body; strong; powerful; as, a valiant fencer. [Obs.]
--Walton.-
Intrepid in danger; courageous; brave.
A valiant and most expert gentleman.
--Shak.And Saul said to David . . . be thou valiant for me, and fight the Lord's battles.
--1 Sam. xviii. 17. -
Performed with valor or bravery; heroic. ``Thou bearest the highest name for valiant acts.''
--Milton.[The saints] have made such valiant confessions.
--J. H. Newman. [1913 Webster] -- Val"iant*ly, adv. -- Val"iant*ness, n.
Wiktionary
n. The property of being valiant.