Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
Zell
←
German
Zelle
(cognate)
←
English
cell
(cognate)
←
Old High German
zella
(derived)
←
Latin
cella
(derived)