Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
falguera
←
French
fougère
(cognate)
←
Galician
folgueira
(cognate)
←
Latin
filix
(inherited)
←
Occitan
falguièra
(cognate)
←
Old Occitan
(inherited)
→
French
fougère
(cognate)
→
Galician
folgueira
(cognate)