Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
feieren
←
German
feiern
(cognate)
←
Middle High German
vīren
(inherited)
←
Old High German
fīrōn
(inherited)
→
Luxembourgish
Feier
(link)