What is "qu'aiti"

Qu'aiti ( ), officially the Qu'aiti State in Hadhramaut or the Qu'aiti Sultanate of Shihr and Mukalla ( ), was a sultanate in the Hadhramaut region of the southern Arabian Peninsula, in what is now Yemen. Its capital was Al Mukalla and it was divided into six provinces including Al Mukalla -including Ash Shihr, Shibam, Du'an, the Western Province and Hajr.