Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Romanian
roșcov
←
Bulgarian
рожков
(borrowed)
←
Proto-Slavic
*rožьkovъ
(mention)
→
Romanian
roșcovă
(mention)