prowess
NounWordNet 3.0
Webster's Dictionary (GCIDE)
Prowess \Prow"ess\, n. [OF. proece, proesce, F. prouesse. See Prow, a.] Distinguished bravery; valor; especially, military bravery and skill; gallantry; intrepidity; fearlessness. --Chaucer. Sir P. Sidney. [1913 Webster]
He by his prowess conquered all France. --Shak. [1913 Webster]