From the Wikipedia page 
Argobba (or Argoba) is one of the woredas in the Afar Region of Ethiopia. The name Argoba was emerged from the amharic language called "Areb geba" when Arab people migrated to the country which means "Arab entered". This woreda is named for the Argobba people, whose homeland lies in this district. Located on the eastern escarpment of the Ethiopian highlands, Argobba is bordered on the south, west and north by the Amhara Region, and on the east by Dulecha. Settlements in this woreda include Gachine.