Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polabian
snok
←
Proto-Germanic
*snakô
(derived)
←
Middle Low German
snāke
(derived)
←
Old Saxon
*snako
(derived)