Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
dafstomm
←
German
taubstumm
(derived)
←
Luxembourgish
daf
(compound)
←
Luxembourgish
stomm
(compound)