Where does “umkhaya” come from?

umkhaya (Zulu) comes from Zulu umu-, from Proto-Bantu *[[gʊ́-]][[mʊ̀-]].

umkhaya (Zulu): family members

Definitions

Step	Language	Word	Meaning
1	Zulu	umu-	Class 1 noun prefix; Class 3 noun prefix
2	Proto-Bantu	*[[gʊ́-]][[mʊ̀-]]	—

umkhaya — Etymology, Origin & Word History | Etymology Explorer