Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Faroese
sjálvur
←
Proto-Germanic
*selbaz
(derived)
←
Proto-Indo-European
*selbʰ-
(derived)
←
Proto-Indo-European
*s(w)e-
(mention)
←
Old Norse
sjálfr
(derived)
→
Faroese
sjálvsøkin
(affix)