Where does “Ja-” come from?

Ja- (Polish) comes from Yao (Africa) ji-, from Proto-Bantu jɪ́- — Class 9 subject concord; Class 9 object concord.

Ancestry of “Ja-”, step by step

StepLanguageWordMeaning
1Yao (Africa)ji-Class 9 subject concord
2Proto-Bantujɪ́-Class 9 subject concord; Class 9 object concord

Words derived from “Ja-”

Every word from Proto-Bantu jɪ́- →Every word from Yao (Africa) ji- →