Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
Kraaft
←
Proto-Germanic
*kraftuz
(inherited)
←
Proto-West Germanic
*kraftu
(inherited)
←
Old High German
kraft
(inherited)
→
Luxembourgish
Aarbechtskraaft
(compound)