Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Faroese
Eysturoy
←
Faroese
eystur
(compound)
←
Faroese
oy
(compound)
←
Old Norse
Austrey
(inherited)
→
Faroese
eysturoyingur
(suffix)