From the dominant people or country.
New Kingdom, Old Kingdom and Middle Kingdom.
Kingdom of Serbs, Croats and Slovenians
The Congo river was givin the name after the Ancient Kingdom of Kongo.
Sheba
Edom
An Axumite is another name for an Aksumite, a native or inhabitant of the ancient Kingdom of Aksum.
The original name of Luxor was Thebes. Luxor was built on the site of ancient Thebes, which was the capital of ancient Egypt during the New Kingdom period.
The nation of Ghana in Africa was named for the ancient Ghana Empire, or Kingdom. In the language used in that ancient kingdom, 'ghana' meant, "Warrior King", a name, no doubt, meant to frighten their enemies.
The history of ancient Egypt is divided into 3 kingdoms - the Old Kingdom, the Middle Kingdom and the New Kingdom.
kingdom
Sobekhotep was a name shared by several Ancient Egyptian pharaohs who reigned during Middle Kingdom.
Mapungubwe was an ancient African Kingdom. Now it is the name of a National park in Republic of South Africa.