Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Norse
Hreiðarr
←
Old Norse
hreiðr
(mention)
←
Old Norse
herr
(mention)
←
Old Norse
geirr
(mention)
→
Faroese
Reiðar
(inherited)
→
Norwegian
Reidar
(derived)