corsair
‘government-sanctioned freebooter of the seas’
Lexical development traced from the Tamil root:
E. coursayre, cursare, corsare, corsaire < F. corsaire < Prov. cursar < Ital. corsaro < Med.Lat. cursarius ‘pirate’ < Lat. cursus ‘course, a running’ < currere ‘to run’ < kaw < kers- < Tamil kaṭu