Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Luxembourgish
dauchen
←
German
tauchen
(cognate)
←
English
duck
(cognate)
←
West Frisian
dûke
(cognate)
←
Middle High German
tūchen
(inherited)
←
Proto-West Germanic
*dūkan
(inherited)
←
Old High German
tūhhan
(inherited)
←
Dutch
duiken
(cognate)
→
Luxembourgish
ducken
(mention)