Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Cornish
deg ha dew ugens
←
Welsh
deg
(compound)
←
Welsh
ha
(compound)
←
Welsh
dew
(compound)
←
Welsh
ugens
(compound)