Where does “jajunus” come from?

jajunus (Latin) comes from Latin ieiunus, from Proto-Italic jagjūnos, from Proto-Indo-European Hyeh₂ǵ-yu-, from Proto-Indo-European Hyeh₂ǵ-ye/o- — to sacrifice.

Ancestry of “jajunus”, step by step

StepLanguageWordMeaning
1Latinieiunusfasting, abstinent, hungry; dry, barren,...
2Proto-Italicjagjūnos
3Proto-Indo-EuropeanHyeh₂ǵ-yu-
4Proto-Indo-EuropeanHyeh₂ǵ-ye/o-to sacrifice
Every word from Proto-Indo-European Hyeh₂ǵ-ye/o-Every word from Proto-Indo-European Hyeh₂ǵ-yu-Every word from Proto-Italic jagjūnos