Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
Bottermëllech
←
German
Botter
(compound)
←
German
Mëllech
(compound)
←
German
Buttermilch
(derived)