Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Norwegian Nynorsk
arr
←
Old Norse
ærr
(derived)
←
Old Norse
ørr
(mention)
→
Norwegian Nynorsk
arrdelfin
(compound)