Where does “-bɪ́dia” come from?

-bɪ́dia (Proto-Bantu) comes from Proto-Bantu -bɪ́da — to call, announce, tell; to be cooked; to boil.

Ancestry of “-bɪ́dia”, step by step

Step	Language	Word	Meaning
1	Proto-Bantu	-bɪ́da	to call, announce, tell; to be cooked; to boil

-bɪ́dia — Etymology, Origin & Word History | Etymology Explorer