Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Faroese
Eysturríki
←
Faroese
eystur
(compound)
←
Faroese
ríki
(compound)
←
Old Norse
(derived)
→
Faroese
eysturríkari
(suffix)