Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Indo-European
*h₁óytos
→
English
oath
(inherited)
→
Danish
ed
(inherited)
→
Ancient Greek
οἶτος
(derived)
→
Norwegian Bokmål
ed
(inherited)
→
Old Norse
eiðr
(inherited)
→
Swedish
ed
(inherited)