A pirate or raider, especially one from the Barbary Coast in North Africa; a privateer who raids ships and coastal settlements.
From French 'corsaire,' derived from Medieval Latin 'cursarius' (raider), from 'cursus' (a running/raid). The word originally meant anyone who made raids, but became specifically associated with North African pirates.
Barbary corsairs were so effective that European powers paid them tribute for centuries rather than fighting back—between 1600-1700, they captured an estimated 1 million European slaves. They were the terrorism of their time, and the word carries that weight.
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