Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bulgarian
бистър
←
Proto-Slavic
*bystrъ
(inherited)
→
Romanian
Bistreț
(affix)
→
Romanian
Bistrețu
(affix)