Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Thai
วัจมรรค
←
Khmer
វច្ចមគ្គ
(cognate)
←
Thai
วัจ-
(affix)
←
Thai
มรรค
(affix)