Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
oidium
←
English
(suffix)
←
English
ium
(suffix)
←
Ancient Greek
ᾠόν
(derived)
→
English
oidial
(suffix)