Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Thai
ก่ง
→
Khmer
កុង
(cognate)
→
Khmer
កោង
(cognate)
→
Thai
โกง
(cognate)
→
Thai
โค้ง
(cognate)
→
Thai
โก่ง
(doublet)