Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Cimbrian
grübalan
←
Cimbrian
graaban
(suffix)
←
Cimbrian
alan
(suffix)
←
German
grübeln
(cognate)
←
English
grub
(cognate)
←
Middle High German
grübelen
(inherited)
←
Old High German
grubilōn
(inherited)
←
Old High German
graban
(mention)
←
Old High German
-lōn
(mention)