Where does “lưng tròng” come from?

lưng tròng (Vietnamese) comes from Vietnamese trồng, from Proto-Vietic k-lɔːŋ, from Proto-Mon-Khmer kluuŋ — inside, middle.

lưng tròng (Vietnamese): welling up in one's eyes

Definitions

  1. welling up in one's eyes

Ancestry of “lưng tròng”, step by step

lưng tròng traces back through two separate lines of ancestry.

via Vietnamese trồng

StepLanguageWordMeaning
1Vietnamesetrồngto plant
2Proto-Vietick-lɔːŋclear; limpid; inside
3Proto-Mon-Khmerkluuŋinside, middle

via Vietnamese lưng

StepLanguageWordMeaning
1Vietnameselưngback
2Proto-Vietick-ləŋback
3Proto-Mon-Khmert₁lanpython
Every word from Proto-Mon-Khmer kluuŋ →Every word from Proto-Vietic k-lɔːŋ →Every word from Vietnamese trồng →