Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Norse
áttatíu
←
Old Norse
átta
(compound)
←
Old Norse
tíu
(compound)
→
Norwegian Bokmål
åtti
(mention)
→
Norwegian Nynorsk
åtti
(mention)