Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
ynseyder
←
Manx
ynsee
(suffix)
←
Manx
der
(suffix)
→
Manx
ard-ynseyder
(prefix)
→
Manx
co-ynseyder
(prefix)