Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
Späicher
←
German
Speicher
(cognate)
←
Old High German
spīhhāri
(inherited)
←
Dutch
spijker
(cognate)