[quote="justice4basra"]on wikipedia:
Biblical Cush: Cush was the eldest son of Ham, brother of Canaan and the father of Nimrod, mentioned in the "Table of Nations" in the Book of Genesis and in I Chronicles. It is usually considered to be the eponym of the people of Kush. Six Arabian tribes are also sons of Cush.
http://en.wikipedia.org/wiki/Biblical_CushCush: Kush was a civilization centered in the region of Nubia, located in what is today northern Sudan. One of the earliest civilizations to develop in the Nile River Valley, Kushite states rose to power before a period of Egyptian incursion into the area. People in Kush were called Kushites.
http://en.wikipedia.org/wiki/CushCushitic languages: The Cushitic languages are a subgroup of the Afro-Asiatic languages, named after the Biblical figure Cush by analogy with Semitic. They are spoken in the Horn of Africa. The most prominent language is Oromo with about 28 million speakers, followed by Somali (in Somalia, Ethiopia, Djibouti, and Kenya) with about 20 million speakers, Sidamo (in Ethiopia) with about 4 million speakers, Hadia about 1.6 million native speakers, Kambata about 1.4 million native speakers and Afar (in Eritrea, Ethiopia, and Djibouti) with about 1.5 million speakers.
http://en.wikipedia.org/wiki/Cushitic[/quote]
Kush is a regional polity south of Ta Seti, the inhabitants neither spoke a Cushtic language and were not even the same ethnicity as the mainstream cushtic speakers. Kush and its inhabitants spoke a Nilosaharan language, Meroe and were nilotes.