Where does “thẳng đứng” come from?

thẳng đứng (Vietnamese) comes from Vietnamese thẳng, from Chinese 湯, from Proto-Sino-Tibetan r-la(w)ŋ — steam; hot.

thẳng đứng (Vietnamese): vertical

Definitions

  1. vertical

Ancestry of “thẳng đứng”, step by step

thẳng đứng traces back through two separate lines of ancestry.

via Vietnamese thẳng

StepLanguageWordMeaning
1Vietnamesethẳngstraight
2Chinese湯—
3Proto-Sino-Tibetanr-la(w)ŋsteam; hot

via Vietnamese đứng

StepLanguageWordMeaning
1Vietnameseđứngto stand; be still
2Chinese容—
Every word from Proto-Sino-Tibetan r-la(w)ŋ →Every word from Chinese 湯 →Every word from Vietnamese thẳng →