Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Norwegian Nynorsk
kasus
←
Proto-Indo-European
*kad-
(derived)
←
Latin
casus
(derived)
←
Latin
cadere
(mention)
←
Norwegian Nynorsk
case
(doublet)
→
Norwegian Nynorsk
case
(doublet)