Where does “jak” come from?

jak (Old Norse) comes from Proto-Norse ᛖᚲ, from Proto-Germanic *ek, from Proto-Indo-European éǵh₂ — I.

Ancestry of “jak”, step by step

StepLanguageWordMeaning
1Proto-NorseᛖᚲI
2Proto-Germanic*ek—
3Proto-Indo-Europeanéǵh₂I

Words derived from “jak”

Every word from Proto-Indo-European éǵh₂ →Every word from Proto-Germanic *ek →Every word from Proto-Norse ᛖᚲ →