Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Swahili
mwaka
←
Proto-Bantu
*mʊ̀jákà
(inherited)
←
Luganda
omwaka
(cognate)
→
Swahili
mwakani
(affix)