Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Norwegian Nynorsk
syndre
←
Norwegian Nynorsk
sør
(doublet)
←
Old Norse
syðri
(inherited)
←
Old Norse
syndri
(mention)