Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Romanian
eres
←
Old Church Slavonic
ересь
(borrowed)
←
Ancient Greek
αἵρεσις
(derived)
←
Romanian
erezie
(doublet)
→
Romanian
erezie
(doublet)