Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old High German
Wigidonar
←
Proto-Germanic
*wīgą
(derived)
←
Proto-Germanic
*wīhaz
(mention)
←
Proto-Germanic
*Þunraz
(derived)
←
Old High German
Donar
(mention)