sentences:  The name Dumat al-Jandal means literally "Dumah of the Stone", since this was the territory of Dumah, one of the twelve sons of Ishmael; the name Al-Jawf means "depression", referring to Wadi Sirhan.The city's ancient Akkadian name was "Adummatu".Dumat al-Jandal has a boundary wall which is considered a historical site.