Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Elfdalian
ig
←
Proto-Germanic
*ek
(derived)
←
Proto-Norse
ᛖᚲ
(derived)
←
Proto-Indo-European
*éǵh₂
(derived)
←
Old Norse
ek
(derived)
←
Swedish
jag
(cognate)