Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Khmer
រោម
←
Khmer
រួម
(doublet)
←
Khmer
លោម
(link)
←
Proto-Mon-Khmer
*rum ~ *ruum ~ *ruəm ~ *ruəp
(inherited)
←
Pali
roma
(borrowed)
→
Khmer
រោមភ្នែក
(compound)
→
Khmer
រួម
(doublet)
→
Khmer
លោម
(link)