Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Romanian
Dâmbova
←
Old Church Slavonic
дѫбова
(borrowed)
←
Old Church Slavonic
дѫбъ
(mention)
←
Old Church Slavonic
-овъ
(mention)
←
Proto-Slavic
*dǫbъ
(derived)
←
Proto-Slavic
*-ovъ
(mention)
→
Romanian
Dubova
(doublet)