Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
champanhe
←
French
champagne
(borrowed)
←
French
Champagne
(mention)
←
Portuguese
campanha
(doublet)
→
Portuguese
campanha
(doublet)