Where does “*agô” come from?

*agô (Proto-Germanic) comes from Proto-Germanic agaz, from Proto-Indo-European h₂égʰos, from Proto-Indo-European h₂egʰ- — to be upset, afraid.

Ancestry of “*agô”, step by step

StepLanguageWordMeaning
1Proto-Germanicagazfear; dread
2Proto-Indo-Europeanh₂égʰosdistress
3Proto-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 →