duel

Words with a similar base: duel

'duel'

[duel.n.01] as in: a prearranged fight with deadly weapons by two people (accompanied by seconds) in order to settle a quarrel over a point of honor

'duel'

[duel.n.02] as in: any struggle between two skillful opponents (individuals or groups)

'duel'

[duel.v.01] as in: fight a duel, as over one's honor or a woman

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Examples:
In the 19th century, men often dueled over small matters