Where does “Æghil” come from?

Æghil (Old Swedish) comes from Old Norse Egill, from Proto-Germanic Agilaz, from Proto-Germanic agaz, from Proto-Indo-European h₂égʰos, from Proto-Indo-European h₂egʰ- — to be upset, afraid.

Ancestry of “Æghil”, step by step

StepLanguageWordMeaning
1Old NorseEgill—
2Proto-GermanicAgilazEgil, a famous archer of Germanic legend and brother of Wayland and Slagfiðr
3Proto-Germanicagazfear; dread
4Proto-Indo-Europeanh₂égʰosdistress
5Proto-Indo-Europeanh₂egʰ-to be upset, afraid
Every word from Proto-Indo-European h₂egʰ- →Every word from Proto-Indo-European h₂égʰos →Every word from Proto-Germanic agaz →