Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
aura
←
Ancient Greek
αὔρα
(derived)
←
Latin
aura
(learned borrowing)
←
Portuguese
oura
(doublet)
→
Portuguese
oura
(doublet)