Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Romanian
cetnic
←
Serbo-Croatian
četnik
(borrowed)
←
Serbo-Croatian
četa
(affix)
←
Serbo-Croatian
-nik
(affix)
←
Proto-Slavic
*četa
(derived)