Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Faroese
tonn
←
Proto-Germanic
*tanþs
(inherited)
←
Proto-Indo-European
*h₃dónts
(inherited)
←
Old Norse
tǫnn
(inherited)
→
Faroese
tannsteinur
(compound)
→
Faroese
sagartonn
(compound)