Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
çhiarnys
←
Manx
çhiarn
(suffix)
←
Manx
ys
(suffix)
→
Manx
co-hiarnys
(prefix)