Where does “zaja” come from?

zaja (Hungarian) comes from Hungarian zaj, from Proto-Uralic śoje — long, pointed object.

Ancestry of “zaja”, step by step

StepLanguageWordMeaning
1Hungarianzajnoise; image noise
2Proto-Uralicśojelong, pointed object
Every word from Proto-Uralic śojeEvery word from Hungarian zaj