Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Romanian
dumbeț
←
Proto-Slavic
*dǫbьcь
(borrowed)
←
Proto-Slavic
*dǫbъ
(derived)
←
Proto-Slavic
*-ьcь
(mention)