Where does “bậc trung” come from?

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

bậc trung (Vietnamese): midranking

Definitions

  1. midranking

Ancestry of “bậc trung”, step by step

bậc trung traces back through two separate lines of ancestry.

via Vietnamese trứng

StepLanguageWordMeaning
1Vietnamesetrứngan egg
2Chinese中middle
3Proto-Sino-Tibetant/duŋnavel; centre

via Vietnamese bậc

StepLanguageWordMeaning
1Vietnamesebậca rung
Every word from Proto-Sino-Tibetan t/duŋ →Every word from Chinese 中 →Every word from Vietnamese trứng →