Oud

Oud – A fretless lute used throughout the Middle East. It originated in ancient Persia, and became popular with the Arabs, who took it with them to Spain during the time of Moorish Andalucia. From there it was adopted by musicians of the west, who called it the lute, a name derived from the Arabic name “Al ‘Ud”.
The oud is actually the grandfather of the modern day guitar.