Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
Cantabria
←
Proto-Celtic
*kantos
(derived)
←
Proto-Celtic
*cant-
(mention)
→
English
Cantabrian
(suffix)
→
English
Cantabric
(suffix)