Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Pnar
khon
←
Proto-Khasian
*kʰɔn
(inherited)
←
Khasi
khun
(cognate)
←
Proto-Mon-Khmer
*kuun
(derived)