Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Norse
einfaldr
→
Faroese
einfaldur
(inherited)
→
Icelandic
einfaldur
(inherited)
→
Swedish
enfaldig
(derived)