Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
Doudesaffer
←
German
Todesopfer
(derived)
←
Luxembourgish
Doud
(affix)
←
Luxembourgish
-s-
(affix)
←
Luxembourgish
Affer
(affix)