Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
castanyer
←
Catalan
castanya
(suffix)
←
Catalan
er
(suffix)
←
French
châtaignier
(cognate)
←
Latin
castanearius
(mention)
←
Portuguese
castanheiro
(cognate)