Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Mon-Khmer
*pt₁is
→
Khmer
ផ្សិត
(inherited)
→
Pnar
tit
(derived)
→
Semai
betees
(inherited)