Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Breton
Sklaer
→
Breton
Sklaera
(suffix)
→
Breton
Sklaerenn
(suffix)
→
Breton
Sklaerijen
(suffix)