Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
eternity
←
Middle English
eternyte
(inherited)
←
Old French
eternité
(derived)
←
Old French
eternitez
(mention)
←
Proto-Indo-European
*h₂ey-
(root)
←
Latin
aeternitās
(derived)
→
English
coeternity
(prefix)
→
English
eternitarian
(suffix)
→
English
preeternity
(prefix)