Where does “Thành Vatican” come from?

Thành Vatican (Vietnamese) comes from Vietnamese Vatican, from English Vatican, from Latin Vātī̆cānus, from Latin vātēs, from Proto-Indo-European weh₂t- — excited, inspired; possessed, raging.

Ancestry of “Thành Vatican”, step by step

Thành Vatican traces back through two separate lines of ancestry.

via Vietnamese Vatican

StepLanguageWordMeaning
1VietnameseVatican
2EnglishVaticanRelating to the Vatican City state
3LatinVātī̆cānus
4Latinvātēsseer, soothsayer, diviner, prophet, prophetess
5Proto-Indo-Europeanweh₂t-excited, inspired; possessed, raging

via Vietnamese thành

StepLanguageWordMeaning
1Vietnamesethànhinto; to achieve one's goal, to become, to turn...
2Chinese
3Proto-Sino-Tibetan*sreŋto live
Every word from Proto-Indo-European weh₂t-Every word from Latin vātēsEvery word from Latin Vātī̆cānus