Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
aquari
←
Catalan
aquàrium
(mention)
←
Catalan
aigüer
(doublet)
←
Latin
aquārium
(borrowed)
→
Catalan
aquàrium
(doublet)