Where does “mấu chốt” come from?

mấu chốt (Vietnamese) comes from Vietnamese máu, from Proto-Celtic *māyūs, from Proto-Indo-European meh₁- — to measure.

mấu chốt (Vietnamese): a crux; key point

Definitions

  1. a crux; key point

Ancestry of “mấu chốt”, step by step

mấu chốt traces back through two separate lines of ancestry.

via Vietnamese máu

StepLanguageWordMeaning
1Vietnamesemáublood; an inherent trait; health
2Proto-Celtic*māyūs—
3Proto-Indo-Europeanmeh₁-to measure

via Vietnamese chốt

StepLanguageWordMeaning
1Vietnamesechốtbolt; fastening pin; checkpoint; to bolt
Every word from Proto-Indo-European meh₁- →Every word from Proto-Celtic *māyūs →Every word from Vietnamese máu →