The cassique of Kiawah is already known to us, and we may well conceive that he bore himself toward the little wife of the famous corsair with all proper kindliness.
-- William Glimore Simms, The Cassique of Kiawah: A Colonial Romance, 1859
We were five days at sea in the situation I have just described, and the captain entertained hopes of making the desired port in two days more, when a vessel was descried bearing down upon us, which proved to be an Algerine corsair…
-- Francis Lathom, The Mysterious Freebooter, or The Days of Queen Bess, 1806
Corsair came to English in the 16th century from the medieval Latin cursus meaning "hostile voyage."