Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Korean
-도
←
Old Korean
刀
(inherited)
→
Korean
-고
(mention)
→
Korean
-겠-
(mention)
→
Korean
-어도
(mention)