Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Ancient Greek
πηγαῖος
←
Ancient Greek
πηγή
(suffix)
←
Ancient Greek
ιος
(suffix)
→
Greek
πηγαίος
(mention)