Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
Kuddelfleck
←
German
Kuttelfleck
(cognate)
←
Luxembourgish
Kuddel
(compound)
←
Luxembourgish
Fleck
(compound)