A person who duels or has dueled; someone who participates in formal combat or serious competitive matches with another person.
From 'duel' plus the agent suffix '-er' (Old English '-ere'), which creates nouns indicating someone who performs an action. This is the American English spelling of the term.
Throughout history, professional duelists were actually celebrities—people paid to watch skilled swordsmen fight, and some became legendary figures. The most famous duelists had signature moves and styles, almost like modern sports athletes, but with potentially fatal consequences!
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