Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Khmer ព្រោះ
← Proto-Mon-Khmer *ruh ~ *ruəh (inherited)

→ Khmer ពីព្រោះ (compound)
→ Khmer ពីរោះ (mention)
→ Thai เพราะ (derived)