Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Faroese
regn
←
Proto-Germanic
*regną
(inherited)
←
Old Norse
regn
(inherited)
→
Faroese
oysregn
(compound)
→
Faroese
regndropi
(compound)