Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Danish
hedensk
←
Danish
heden
(suffix)
←
Danish
sk
(suffix)
←
Old Norse
heiðinn
(derived)
→
Danish
vantro
(link)