The term 'Certain East African' can be summarized by the crossword solution 'Somali', which is a 6-letter word. Somali people are an ethnic group native to Somalia, a country located in the Horn of Africa. They are also found in other countries in the region, such as Ethiopia, Djibouti, and Kenya. The Somali language is spoken by the majority of Somalis, and it is part of the Cushitic branch of the Afro-Asiatic language family.