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

→ Phuthi bu- (inherited)
→ Northern Ndebele ubu- (inherited)
→ Southern Ndebele ubu- (inherited)
→ Swazi bu- (inherited)
→ Tsonga vu- (inherited)
→ Venda vhu- (inherited)
→ Xhosa ubu- (inherited)
→ Zulu ubu- (inherited)