Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Khmer
លូ
←
Proto-Mon-Khmer
*luʔ
(inherited)
←
Proto-Mon-Khmer
*lɔʔ ~ *lɔɔʔ
(inherited)
←
Vietnamese
tru
(cognate)
←
Vietnamese
lu
(cognate)
→
Vietnamese
lu
(cognate)