Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Faroese
allur
←
Proto-Germanic
*allaz
(derived)
←
Proto-Indo-European
*al-
(derived)
←
Old Norse
allr
(derived)
→
Faroese
allastaðni
(compound)
→
Faroese
altíð
(compound)