Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Romanian
Bistreț
←
Bulgarian
Бистрец
(borrowed)
←
Bulgarian
бистър
(affix)
←
Bulgarian
-ец
(affix)
←
Old Church Slavonic
бꙑстръ
(derived)
←
Proto-Slavic
*bystrъ
(derived)
→
Romanian
Bistrețu Nou
(mention)