The scimitar was a sabre that originated in Southwest Asia, or the Middle East.
The Arabic term, saif, translates to 'sword' in general, but is normally taken to refer to the scimitar, a curved backsword.
The scimitar was widely used by Muslims in the Ottoman period (1299-1923). Though some records date the scimitar to be used in the 9th century.
The scimitar, while popularly thought to be a cutting-only weapon, can actually perform not only deep, powerful cuts but also hooking, rising, and descending thrusts.