Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
Geld
←
Middle High German
gelt
(inherited)
←
Proto-West Germanic
*geld
(inherited)
←
Old High German
kelt
(inherited)