Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
Wuecht
←
German
Wacht
(cognate)
←
Proto-Germanic
*wahtwō
(inherited)
←
Middle High German
wahta
(inherited)
←
Old High German
wahta
(inherited)
←
Dutch
wacht
(cognate)
→
Luxembourgish
Wuechthond
(compound)