Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
ego
←
Latin
ego
(borrowed)
←
Portuguese
eu
(doublet)
→
Portuguese
eu
(doublet)
→
Portuguese
egoísmo
(suffix)
→
Portuguese
egocêntrico
(affix)