Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Faroese
hjálp
←
Old Norse
hjalp
(derived)
←
Old Norse
hjǫlp
(mention)
→
Faroese
fyrstahjálp
(compound)