Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Breton
geriadur
←
Breton
ger
(affix)
←
Breton
-adur
(affix)
←
Welsh
geiriadur
(cognate)
→
Breton
geriadurioù
(affix)