Where does “isibongo” come from?

isibongo (Xhosa) comes from Xhosa isi-, from Proto-Bantu *[[kɪ́-]][[kɪ̀-]].

isibongo (Xhosa): class name

Definitions

Step	Language	Word	Meaning
1	Xhosa	isi-	Class 7 noun prefix
2	Proto-Bantu	*[[kɪ́-]][[kɪ̀-]]	—

isibongo — Etymology, Origin & Word History | Etymology Explorer