Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Ancient Greek
αὐτερέτης
←
Ancient Greek
αὐτο-
(affix)
←
Ancient Greek
ἐρέτης
(affix)
←
Proto-Indo-European
*h₁reh₁-
(root)