duellist
A duellist is a person who participates in a duel, a prearranged combat between two parties conducted under agreed rules. The practice originated in Europe during the late Middle Ages and became widespread in the early modern period as a means to settle disputes of honor when other remedies were unavailable. The spelling varies by region: duellist (British English) and duelist (American English and other variants).
Duels were fought with a range of weapons, depending on era and culture. Sword duels using rapiers
Legal status and decline: from the 19th century onward, many jurisdictions criminalized dueling or linked it
Notable example: The 1804 duel between Alexander Hamilton and Aaron Burr is widely cited, in which Hamilton