Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Catalan
arrel
←
Catalan
rel
(mention)
←
Catalan
raïl
(mention)
←
Proto-Indo-European
*wréh₂ds
(inherited)
←
Proto-Italic
*wrād-ī-
(derived)
←
Latin
radix
(inherited)
→
Catalan
arrelar
(suffix)