Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
berfenw
←
Welsh
berf
(compound)
←
Welsh
enw
(compound)
→
English
verbnoun
(mention)
→
Welsh
berfenwau
(compound)