Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
Joerhonnert
←
German
Jahrhundert
(derived)
←
Luxembourgish
Joer
(compound)
←
Luxembourgish
honnert
(compound)