Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Vietnamese tôm
Proto-Mon-Khmer *sum (inherited)
Proto-Mon-Khmer *suum (mention)
Proto-Vietic *soːm (inherited)
Muong thôm (cognate)
Pacoh axoum (cognate)

Vietnamese tôm hùm (compound)
Vietnamese bán chạy như tôm tươi (compound)
Vietnamese mắm tôm (compound)
Vietnamese mì tôm (compound)
Vietnamese tôm tít (compound)