Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
ennea-
←
Ancient Greek
ἐννέα
(mention)
→
English
ununennium
(mention)
→
English
enneastyle
(affix)
→
English
enneadeca-
(mention)