Where does “Roar” come from?

Roar (Norwegian) comes from Old Norse Hróarr, from Proto-Germanic Hrōþigaizaz, from Proto-Germanic gaizaz, from Proto-Indo-European ǵʰoysós, from Proto-Indo-European ǵʰey- — winter.

Ancestry of “Roar”, step by step

StepLanguageWordMeaning
1Old NorseHróarr
2Proto-GermanicHrōþigaizazfame-spear
3Proto-Germanicgaizazspear, pike, javelin
4Proto-Indo-Europeanǵʰoysósthrowing spear
5Proto-Indo-Europeanǵʰey-winter
Every word from Proto-Indo-European ǵʰey-Every word from Proto-Indo-European ǵʰoysósEvery word from Proto-Germanic gaizaz