The local Toubou name is ngam ouidenanga meaning gazelle cat.
While French has been the cross cultural language of choice since independence, there are eight other official languages spoken in Niger, which include Hausa, Zarma/Songhai, Tamajeq, Fulfulde, Kanuri, Arabic, Gurmantche, and Toubou.
The derde (derda, derdai, dardai) is the title held by the highest religious and political authority among the Toubou Teda of the Tibesti, in north-western Chad.
Oueddei Kichidemi was the father of the former Chadian President Goukouni Oueddei and was the tribal leader, or derde, of the Toubou Teda of the Tibesti during the First Chadian Civil War.