Where does “aits” come from?

aits (Proto-Italic) comes from Proto-Indo-European h₂éydʰ-s, from Proto-Indo-European h₂eydʰ- — to ignite; fire.

Ancestry of “aits”, step by step

StepLanguageWordMeaning
1Proto-Indo-Europeanh₂éydʰ-s—
2Proto-Indo-Europeanh₂eydʰ-to ignite; fire
Every word from Proto-Indo-European h₂eydʰ- →Every word from Proto-Indo-European h₂éydʰ-s →