Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Romansch
bun
→
Romansch
bunmartgà
(compound)
→
Romansch
bunmarcho
(compound)
→
Romansch
bunmarchà
(compound)