The art of sword?

Swordsmanship refers to the skills of a swordsman, a person versed in fencing with a sword. The term is modern, and as such was mainly used to refer to smallsword fencing, but by extension it can also be applied to any martial art involving the use of a sword. The root of the English word "swordsman" follows from the word gladiator, a Roman term for the professional fighters who fought against each other and a variety of other foes for the entertainment of spectators. The word gladiator itself comes from the Roman word gladius, meaning "a sword".