Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
dënn
←
German
dünn
(cognate)
←
English
thin
(cognate)
←
Proto-Germanic
*þunnuz
(derived)
←
Old High German
dunni
(derived)
←
Icelandic
þunnur
(cognate)
←
Dutch
dun
(cognate)