Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Saxon
skild
←
Proto-West Germanic
*skeldu
(inherited)
→
Danish
skilt
(derived)
→
Old Norse
skjǫldr
(cognate)
→
Old Frisian
skeld
(cognate)