Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Danish
eg
←
Proto-Indo-European
*h₂eyǵ-
(root)
←
Proto-Indo-European
*h₂eyǵ-
(derived)
←
Old Norse
eik
(derived)
→
English
oak
(cognate)
→
Danish
korkeg
(compound)
→
Danish
egetræ
(compound)
→
German
Eiche
(cognate)