Where does “*kẹrtüček” come from?

*kẹrtüček (Proto-Turkic) 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.

Ancestry of “*kẹrtüček”, step by step

StepLanguageWordMeaning
1EstonianKertuGertrude
2GermanGertrud—
3Old High Germangērspear
4Proto-West Germanicgaiʀspear
5Proto-Germanicgaizazspear, pike, javelin
6Proto-Indo-Europeanǵʰoysósthrowing spear
7Proto-Indo-Europeanǵʰey-winter

Words derived from “*kẹrtüček”

Every word from Proto-Indo-European ǵʰey- →Every word from Proto-Indo-European ǵʰoysós →Every word from Proto-Germanic gaizaz →