Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
Héiflechkeet
←
German
Höflichkeit
(derived)
←
Luxembourgish
héiflech
(suffix)
←
Luxembourgish
keet
(suffix)