Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Greek
επτά
←
Ancient Greek
ἑπτά
(inherited)
←
Proto-Hellenic
*heptə́
(inherited)
←
Proto-Indo-European
*septḿ̥
(inherited)
→
Greek
Επτάνησα
(mention)
→
Greek
επτάφωτος
(affix)