Where does “сарацин” come from?

сарацин (Russian) comes from Latin saracenus, from Ancient Greek Σαρακηνός, from Arabic شَرْقِيِّين — easterners.

сарацин (Russian): Saracen

Definitions

Step	Language	Word	Meaning
1	Latin	saracenus	—
2	Ancient Greek	Σαρακηνός	a desert-dwelling Arabic or para-Arabic nomad of...
3	Arabic	شَرْقِيِّين	easterners

сарацин — Etymology, Origin & Word History | Etymology Explorer