Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Romanian
vârcolac
←
Bulgarian
върколак
(borrowed)
←
Proto-Slavic
*vьlkolàkъ
(derived)
→
Romanian
Vîrcolacu
(mention)