Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Vietnamese lưng
Proto-Vietic *k-ləŋ (inherited)
Proto-Tai *ʰlaŋᴬ (cognate)
Thai หลัง (cognate)

Vietnamese thắt lưng (compound)
Vietnamese dây lưng (compound)
Vietnamese lưng tròng (compound)