Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
coeval
←
Proto-Indo-European
*h₂ey-
(root)
←
Latin
con-
(derived)
←
Latin
aevum
(mention)
→
English
coevally
(suffix)
→
English
coevality
(suffix)
→
English
coevalist
(suffix)