Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Romanian
paparudă
←
Bulgarian
пеперуда
(borrowed)
←
Bulgarian
Перун
(mention)
←
Proto-Slavic
*Perunъ
(derived)