Fascinating:

https://blogs.bl.uk/asian-and-african/2022/08/translating-piracy.html

The term is actually a relatively recent addition to the Arabic language, and is a cognate of the English term ‘corsair’ from the Latin cursarius. The earliest Arabic dictionary to include qurṣān to mean ‘sea thief’ is al-Bustānī’s Muḥīṭ al-Muḥīṭ (1870), where it is listed as a plural noun and marked as ‘foreign’ (إفرنجية). Further clues can be found in Reinhart Dozy’s Supplément aux dictionnaires arabes (1877-1881) which includes colloquialisms and foreign borrowings in Arabic. Dozy lists قرصل ( qurṣul), قرصال (qurṣāl) and كرسالي (kursālī) in addition to qurṣān to mean both ‘pirate’ and ‘warship’, and he links them to Spanish (corsario) and Italian (corsale). Also listed are the now common forms qarāṣinah (pirates) and qarṣanah (piracy).