Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Vietnamese rộ
Proto-Mon-Khmer *roʔ(roʔ) (inherited)
Proto-Mon-Khmer *rooʔ (mention)
Riang rɔʔ¹ (cognate)

Vietnamese nở rộ (compound)