Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Galician
área
←
Galician
eira
(mention)
←
Latin
ārea
(borrowed)
→
Galician
eira
(doublet)
→
Galician
hectárea
(prefix)