Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
faig
←
Catalan
fageda
(link)
←
Proto-Indo-European
*bʰeh₂ǵos
(inherited)
←
Proto-Italic
*fāgos
(inherited)
←
Latin
fāgeus
(inherited)
←
Latin
fāgus
(inherited)
←
Old Occitan
(inherited)
→
Catalan
fageda
(suffix)