Where does “my” come from?

my (Manx) comes from Old Irish mo, from Vietnamese máu, from Proto-Celtic *māyūs, from Proto-Indo-European meh₁- — to measure.

my (Manx): if

Definitions

  1. if

Ancestry of “my”, step by step

StepLanguageWordMeaning
1Old Irishmomy
2Vietnamesemáublood; an inherent trait; health
3Proto-Celtic*māyūs—
4Proto-Indo-Europeanmeh₁-to measure
Every word from Proto-Indo-European meh₁- →Every word from Proto-Celtic *māyūs →Every word from Vietnamese máu →