Why is Chad not included as an Arabic country official languages are: French and Arabic and approximately 50 % consider Arabic as a 1st language. Many others as a language of trade. Also when I was in Chad the Libyans had control. I heard people say Goum or goumi what are they? From context I think it is get up or stand up. The ibaya of Libya and Tunisia is all white and in the golf Abaya is all black. Chadians called ibaya to prints of many designs or colours.