Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Cornish
ponsfordh
←
Cornish
pons
(affix)
←
Cornish
fordh
(affix)
→
Cornish
ponsfordhow
(suffix)