Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Swahili
kumi
←
Proto-Bantu
*ìkʊ́mì
(inherited)
→
Swahili
kikumi
(prefix)
→
Yao
likumi
(cognate)