Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Faroese
av
←
Proto-Germanic
*ab
(derived)
←
Proto-Indo-European
*apó
(derived)
←
Proto-Indo-European
*h₂epó
(mention)
←
Old Norse
af
(derived)
→
Faroese
á
(link)
→
Faroese
av-
(mention)
→
Faroese
avgerð
(prefix)
→
Faroese
avgustur
(confix)