Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Mon-Khmer
*buŋ()
→
Khmer
ពុង
(inherited)
→
Thai
พุง
(derived)
→
Vietnamese
bụng
(inherited)