Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Cornish
skrif
→
Cornish
liesskrif
(compound)
→
Cornish
berrskrif
(affix)
→
Cornish
skrifow
(suffix)
→
Cornish
bewskrif
(affix)