Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
so-
←
Latin
sub-
(inherited)
←
Portuguese
sub-
(doublet)
→
Portuguese
sub-
(doublet)
→
Portuguese
sopesar
(affix)
→
Portuguese
sopé
(affix)
→
Portuguese
socapa
(affix)