Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Portuguese
meã
←
Latin
mediānus
(inherited)
←
Latin
mediāna
(mention)
←
Portuguese
meão
(mention)
←
Portuguese
mediana
(doublet)