Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Romanian
Baicu
←
Bulgarian
Байко
(derived)
→
Romanian
Băiculești
(affix)
→
Romanian
Băiceni
(affix)
→
Romanian
Băicoi
(affix)
→
Romanian
Băiculescu
(affix)
→
Romanian
Băicuș
(affix)