Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Norse
okkarn
→
Norwegian Nynorsk
kons
(inherited)
→
Norwegian Nynorsk
okka
(mention)
→
Norwegian Nynorsk
okkons
(derived)