PROWESS
art, artistry, prowess
(noun) a superior skill that you can learn by study and practice and observation; “the art of conversation”; “it’s quite an art”
Source: WordNet® 3.1
Etymology
Noun
prowess (countable and uncountable, plural prowesses)
(uncountable) Skillfulness and manual ability; adroitness or dexterity.
(uncountable) Distinguished bravery or courage, especially in battle; heroism.
(countable) An act of prowess.
Source: Wiktionary
Prow"ess, n. Etym: [OF. proece, proesce, F. prouesse. See Prow, a.]
Definition: Distinguished bravery; valor; especially, military bravery and
skill; gallantry; intrepidity; fearlessness. Chaucer. Sir P. Sidney.
He by his prowess conquered all France. Shak.
Source: Webster’s Unabridged Dictionary 1913 Edition