Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
griichesch
←
German
griechisch
(derived)
←
Luxembourgish
Griich
(suffix)
←
Luxembourgish
-esch
(suffix)