Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Norse
einnhverr
←
Old Norse
einn
(compound)
←
Old Norse
hverr
(compound)
→
Icelandic
einhver
(inherited)
→
Icelandic
onkur
(inherited(is/fo))
→
Norwegian Nynorsk
einkvan
(inherited)
→
Swedish
envar
(derived)