Complex sentence: According to Cheikh Anta Diop, the Egyptians referred to themselves as "Black" people or "kmt", and "km" was the etymological root of other words, such as Kam or Ham, which refer to Black people in Hebrew tradition.
Split into simpler sentences: According to Cheikh Anta Diop, the Egyptians referred to themselves as "black people" or "kmt". He based this in part on an etymological argument that "km" was the root of other words, such as Kam or Ham, which refer to dark-skinned populations in Hebrew tradition.