Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
secreto
←
Latin
sēcrētus
(borrowed)
←
Portuguese
segredo
(doublet)
→
Portuguese
secretaria
(suffix)
→
Portuguese
segredo
(doublet)
→
Portuguese
secretamente
(affix)
→
Portuguese
secretismo
(suffix)