Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Ancient Greek
ἑπταμερής
←
Ancient Greek
ἑπτά
(affix)
←
Ancient Greek
μέρος
(affix)
←
Ancient Greek
-ής
(affix)
→
English
heptamerous
(cognate)