Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Breton
revelezh
→
Breton
arallrevelezh
(compound)
→
Breton
divrevelezh
(compound)
→
Breton
heñvelrevelezh
(compound)