Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
zeréck
←
Old High German
zi rugge
(derived)
←
Luxembourgish
ze
(prefix)
←
Luxembourgish
Réck
(prefix)