Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Cornish
divarva
←
Cornish
di-
(compound)
←
Cornish
barv
(compound)
←
Cornish
-a
(compound)
→
Cornish
omdhivarva
(compound)