Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Proto-Bantu *bà-

→ Northern Sotho ba- (inherited)
→ Sotho ba- (inherited)
→ Swahili wa- (inherited)
→ Tswana ba- (inherited)
→ Zulu ba- (inherited)