backswordman
/ˈbæksˌswɔrdmæn/Definitions
1. noun
A person skilled in the use of a backsword, especially in the 18th century.
“The fencing enthusiast was known as a skilled backswordman in the local tournaments.”
2. noun
A swordsman who uses a backsword, often associated with the English school of fencing.
“The 19th-century novel featured a character as a skilled backswordman who fought in duels.”