Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Norse
atfǫr
←
Proto-Indo-European
*per-
(root)
←
Old Norse
at
(prefix)
←
Old Norse
fǫr
(prefix)
→
Old Norse
atfararþing
(compound)
→
Old Norse
atfarardómr
(compound)