Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
zweiwelen
←
German
zweifeln
(cognate)
←
Old High German
zwīfalen
(inherited)
←
Dutch
twijfelen
(cognate)
→
Luxembourgish
bezweiwelen
(affix)
→
Luxembourgish
verzweiwelen
(affix)