Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Romanian
ruj
←
French
rouge
(borrowed)
←
Latin
rubeus
(derived)
←
Romanian
roib
(doublet)
→
Romanian
ruja
(affix)
→
Romanian
roib
(doublet)