Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Breton
ek
→
Breton
divyezhek
(confix)
→
Breton
hollek
(suffix)
→
Breton
douarek
(suffix)
→
Breton
dourek
(suffix)
→
Breton
houarnek
(suffix)
→
Breton
speredek
(suffix)
→
Breton
leonek
(suffix)