Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Norwegian Bokmål
ett
←
Old Norse
eitt
(inherited)
→
Norwegian Bokmål
et
(link)
→
Norwegian Bokmål
ettårig
(suffix)
→
Norwegian Bokmål
ettåring
(suffix)