Where does “Aadu” come from?

Aadu (Estonian) comes from Russian ад, from Old East Slavic адъ, from Old Church Slavonic адъ, from Ancient Greek ᾍδης, from Proto-Indo-European n̥-, from Proto-Indo-European ne — not.

Ancestry of “Aadu”, step by step

Aadu traces back through 3 separate lines of ancestry.

via Russian ад

StepLanguageWordMeaning
1RussianадHades; hell
2Old East Slavicадъhell
3Old Church Slavonicадъhell
4Ancient GreekᾍδηςHades (Greek god)
5Proto-Indo-Europeann̥-not, un-
6Proto-Indo-Europeannenot

via Old Hindi अरध

StepLanguageWordMeaning
1Old Hindiअरधhalf
2Sanskritअर्धhalf, halved, forming a half; the half; one part...
3Proto-Indo-IranianHárdʰasdivision, half
4Proto-Indo-Europeanh₁érdʰ-o-s—
5Proto-Indo-Europeanh₁er-earth

via Estonian Aadam

StepLanguageWordMeaning
1EstonianAadamAdam

Words derived from “Aadu”

Every word from Proto-Indo-European ne →Every word from Proto-Indo-European n̥- →Every word from Ancient Greek ᾍδης →