Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
dogéint
←
German
dagegen
(cognate)
←
Luxembourgish
do
(compound)
←
Luxembourgish
géint
(compound)