Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Rwanda-Rundi
otsa
←
Proto-Bantu
*-jòkia
(inherited)
←
Proto-Bantu
*-jòka
(inherited)
→
Rwanda-Rundi
umwotsi
(mention)