Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
schluechten
←
German
schlachten
(cognate)
←
Middle High German
slahten
(inherited)
←
Old High German
slahtōn
(inherited)
←
Dutch
slachten
(cognate)