Where does “Gertrud” come from?

Gertrud (German) comes 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 “Gertrud”, step by step

Gertrud traces back through two separate lines of ancestry.

via Old High German gēr

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

via Proto-Germanic þrūþiz

StepLanguageWordMeaning
1Proto-Germanicþrūþizstrength
2Proto-Germanic-þizForms abstract nouns from verb roots, usually...
3Proto-Indo-European-tisDerives abstract/action nouns from verb roots

Words derived from “Gertrud

Every word from Proto-Indo-European ǵʰey-