Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
ceaghil
→
Manx
co-cheaghlid
(confix)
→
Manx
co-cheaghleyder
(confix)
→
Manx
co-cheaghil
(prefix)