Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Khmer រៀន
ᦵᦣᧃ (cognate)
Northern Khmer รฺีน (cognate)
Lao ຮຽນ (cognate)
Proto-Mon-Khmer *riən (inherited)
Thai เรียน (cognate)

ᦵᦣᧃ (cognate)
Khmer សាលារៀន (compound)
Khmer មេរៀន (compound)
Thai เรียน (cognate)