Where does “ai̯tnă” come from?

ai̯tnă (Polabian) comes from Polabian aita, from Proto-Germanic attô, from Proto-Indo-European átta — father.

Ancestry of “ai̯tnă”, step by step

StepLanguageWordMeaning
1Polabianaitafather
2Proto-Germanicattôfather, dad; forefather
3Proto-Indo-Europeanáttafather
Every word from Proto-Indo-European átta →Every word from Proto-Germanic attô →Every word from Polabian aita →
ai̯tnă — Etymology, Origin & Word History | Etymology Explorer