Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Mon-Khmer
*kɔʔ
→
Khmer
ក
(inherited)
→
Mon
ကံ
(inherited)
→
Vietnamese
cổ
(derived)
→
Chinese
喉
(cognate)