خرشنة

Etymology
From the root dealing with "scratching", "scrapping", "peeling", "to snatch or claw at." Uncertain reference to perhaps its slender beak, the distinguishing characteristic from the wider-billed gulls; from a common practice of forming a nest by scratching a groove in sand; a forked-shaped tail; or simply from its swooping down and snatching small fish.

Perhaps semantically related to, also with an etymology meaning to peel, generally suggested to reference an "emaciated or slender figure".

Noun

 * 1) tern, Sterna