Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Breton
konikl
←
Ancient Greek
κύνικλος
(derived)
←
Latin
cunīculus
(derived)
→
Breton
konikleta
(suffix)