Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Serbo-Croatian
ploditi
←
Proto-Slavic
*ploditi
(inherited)
→
Romanian
plodi
(cognate)
→
Serbo-Croatian
oploditi
(prefix)