Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Fala
a
←
Fala
o
(link)
←
Latin
illa
(inherited)
←
Latin
ad
(inherited)
←
Old Portuguese
á
(derived)
←
Old Portuguese
a
(derived)