Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
cátedra
←
Latin
cathedra
(borrowed)
←
Portuguese
cadeira
(doublet)
→
Portuguese
cadeira
(doublet)
→
Portuguese
catedral
(suffix)