Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Norwegian
hest’e
←
Proto-Germanic
*hangistaz
(inherited)
←
Middle Norwegian
hester
(inherited)
←
Norwegian Nynorsk
hingst
(doublet)
←
Old Norse
hestr
(inherited)