Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Japanese
オメガ
←
Greek
ωμέγα
(borrowed)
←
English
omega
(borrowed)
←
Ancient Greek
ὦ μέγα
(learned borrowing)