Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Khmer
រោយ
←
Khmer
រួយ
(doublet)
←
Thai
โรย
(cognate)
→
Khmer
ស្លោក
(link)
→
Khmer
រួយ
(doublet)
→
Vietnamese
rơi
(cognate)