Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
nombre
←
Proto-Indo-European
*nem-
(derived)
←
Latin
numerus
(inherited)
←
Old Occitan
nombre
(inherited)
→
Catalan
número
(doublet)
→
Catalan
nombrós
(suffix)