Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
eon
←
Ancient Greek
αἰών
(borrowed)
←
Proto-Indo-European
*h₂ey-
(root)
→
English
chron
(mention)
→
English
eonic
(suffix)
→
English
supereon
(prefix)
→
French
éon
(mention)
→
Sanskrit
आयु
(cognate)
→
Sanskrit
आयुस्
(cognate)