Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Norse
deigr
←
Proto-Germanic
*daigaz
(inherited)
→
Danish
dej
(derived)
→
Faroese
deigur
(inherited)
→
Old Danish
degh
(inherited)
→
Icelandic
deigur
(inherited)
→
Old Norse
deig
(mention)