Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
onto-
←
Ancient Greek
ὤν
(borrowed)
←
Ancient Greek
εἰμί
(mention)
←
Proto-Indo-European
*h₁es-
(root)
→
English
paleontology
(affix)
→
English
neontology
(affix)
→
English
ontosophy
(affix)
→
English
sporont
(mention)