Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Mon-Khmer
*cʔə(ə)ʔ
→
Khmer
ត្អើក
(inherited)
→
Mon
ဒအိုအ်
(inherited)