Where does “中” come from?

中 (Vietnamese) comes from Chinese 中, from Proto-Sino-Tibetan t/duŋ — navel; centre.

Ancestry of “中”, step by step

StepLanguageWordMeaning
1Chinese中middle
2Proto-Sino-Tibetant/duŋnavel; centre
Every word from Proto-Sino-Tibetan t/duŋ →Every word from Chinese 中 →