Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
adem
←
Proto-Indo-European
*h₂énh₂t-
(inherited)
←
Latin
anas
(inherited)
←
Old Portuguese
ãade
(inherited)