Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
kertastjaki
←
Icelandic
kerti
(compound)
←
Icelandic
stjaki
(compound)
←
Old Norse
kertastjaki
(inherited)