Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Korean
섣달
←
Korean
설
(compound)
←
Korean
-ㅅ-
(compound)
←
Korean
달
(compound)
→
Jeju
섣ᄃᆞᆯ
(cognate)