The Complete List of Arabic words in Dune: Arrakis: The Arabic name of the star "Mu Draconis". Arrakis means the Dancer (the dancing/trotting camel) Muad'Dib: Teacher/tutor Usul: Principles, fundamentals, bases Shai-Hulud: Eternal thing, or Eternal Shaikh/Sheik (old man) Gom Jabbar: Mighty people. Usually used to describe a strong enemy. See Qur'an 5:22 Thufir Hawat: Thufir can come from the the root ZFR (victorious). Hawat from the root HWT, to enclose/guard/protect. Also, to take precautions Caid: Leader/officer Mahdi: The guided one. A Messianic figure, a Caliph expected to lead the Muslims in the end times. Lisan al-Gaib: Teller of things yet to come Kull Wahad: Literally "Everybody". Maybe a corruption of "O Wahed Al-Kul" (the one of everything), or a corruption of Qur'an 112:1 (Qul Hua Allah Ahad) Jihad: Struggle, Crusade. Alia: The elevated/exalted one Shari-a: Law (Islamic law) Sook: Market Erg: Sea of Sand Razzia: Raid Shaitan: Satan T...