Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Proto-Mon-Khmer *tkɔɔʔ

→ Khmer កោះ (inherited)
→ Mon လ္ကံ (inherited)
→ Mon တ္ကံ (inherited)
→ Vietnamese gò (inherited)
→ Chinese 島 (cognate)