Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
déngen
←
German
dienen
(cognate)
←
Old High German
dionōn
(inherited)
←
Icelandic
þjóna
(cognate)
←
Dutch
dienen
(cognate)
←
Swedish
tjäna
(cognate)
→
Luxembourgish
bedéngen
(affix)
→
Luxembourgish
verdéngen
(affix)
→
Luxembourgish
Dénger
(affix)