Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Proto-Sino-Tibetan *duk ~ tuk

→ Tibetan དུག (inherited)
→ Tibetan གདུག་པ (inherited)
→ Tangut 𗀀 (inherited)
→ Chinese 毒 (inherited)