Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Khmer
រូង
←
Northern Khmer
รูง
(cognate)
←
Proto-Mon-Khmer
*ruŋh
(inherited)
→
Vietnamese
rỗng
(cognate)