Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
dublar
←
French
doubler
(borrowed)
←
Portuguese
dobrar
(doublet)
→
Latin
duplo
(link)
→
Portuguese
dobrar
(doublet)