Bantu = It is a language family that is a subset of the Volta-Congo family, which is part of the ostensible Niger-Congo language family. All ethnic groups that speak a Bantu language are, therefore, Bantu. Zulus and Kikuyus are examples of Bantu peoples.
BANTU: Bantu languages are a family of languages spoken by the Bantu people in Sub-Saharan Africa. Bantu means “human being”. Those languages have originated from a common Proto-Bantu languages, which have been spoken in what is now Cameroon in Central Africa approximately 2000–3000 years ago. It is considered that the first people speaking Bantu emerged south of the rain forest in the Congo River area. Bantu people migrated eastward and southward at that time spreading the use of the languages. Bantu languages use muntu or mutu for “human being” and use plural prefix for every human nouns starting with mu. Bantu languages are mostly closely related and share many similarities
Nilotic = It is a language family that is a subset of the ostensible Eastern Sudanic family, which is a subset of the proposed Nilo-Saharan language family. Dinkas, Nuers, Kalenjins, and Luos are examples of Nilotic peoples.
Yorubas = The people who speak Yoruba and identify as Yoruba. They speak a Volta-Congo language as well, and speak a language that appears to be fairly, but certainly not very, closely related to the next group in this series. They live mostly in SW Nigeria, but also in parts of Bénin and Togo. They are mostly Christian, but with a large Muslim minority.
Igbos = The people who speak Igbo and identify as Igbo. Their language shares a lot of similarities with the Yoruba language. They come from SE Nigeria. They are mainly Christian.
Hausa = A Chadic-speaking people (part of the Afro-Asiatic family) who live mostly in Northern Nigeria, but also in parts of Niger. They’re mostly Sunni Muslim.
Pygmy = A term for the original inhabitants of the Central African rainforest. They are know to have a relatively short stature, and are genetically distinct from other Central African populations. They speak a variety of languages, some of which are unrelated to one another, but frequently live symbiotically with non-Pygmy communities. The term “Pygmy” is somewhat controversial, though.
Bushmen = A slightly outdated term that described non-Bantu Southern African indigenous groups, most of whom were hunter-gatherers. They’re typically referred to as “Khoisan peoples.”.
Hottentot = An outdated and offensive term for the aforementioned. The name is rooted in the way European settlers and travelers thought how their languages sounded (they have clicks).
Oromos = A Cushitic people who live primarily in Ethiopia and part of Kenya. They’re mostly Sunni Muslim, but with a large Christian minority, and are the largest Ethiopian ethnic group by percentage.
Lambas = A Bantu-speaking people from Zambia and the Democratic Republic of Congo.
Cushitic = It is a subgroup of Afro-Asiatic languages in the Northeast Africa. This family includes the Somali, Afar, and Oromo languages.