Where does “trùng khớp” come from?

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

trùng khớp (Vietnamese): to match, to correspond

Definitions

  1. to match, to correspond

Ancestry of “trùng khớp”, step by step

trùng khớp traces back through two separate lines of ancestry.

via Vietnamese trứng

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

via Vietnamese khớp

StepLanguageWordMeaning
1Vietnamesekhớpjoint; joint; articulation; to fit together...
Every word from Proto-Sino-Tibetan t/duŋ →Every word from Chinese 中 →Every word from Vietnamese trứng →