Where does “кырдьык” come from?

кырдьык (Yakut) comes from Estonian Kertu, from German Gertrud, from Old High German gēr, from Proto-West Germanic gaiʀ, from Proto-Germanic gaizaz, from Proto-Indo-European ǵʰoysós, from Proto-Indo-European ǵʰey- — winter.

кырдьык (Yakut): true, veritable, exact; truth

Definitions

  1. true, veritable, exact; truth

Ancestry of “кырдьык”, step by step

StepLanguageWordMeaning
1EstonianKertuGertrude
2GermanGertrud—
3Old High Germangērspear
4Proto-West Germanicgaiʀspear
5Proto-Germanicgaizazspear, pike, javelin
6Proto-Indo-Europeanǵʰoysósthrowing spear
7Proto-Indo-Europeanǵʰey-winter
Every word from Proto-Indo-European ǵʰey- →Every word from Proto-Indo-European ǵʰoysós →Every word from Proto-Germanic gaizaz →