Where does “Գադես” come from?

Գադես (Armenian) comes from Russian Га́дес, from Ancient Greek ᾍδης, from Proto-Indo-European n̥-, from Proto-Indo-European ne — not.

Ancestry of “Գադես”, step by step

StepLanguageWordMeaning
1RussianГа́десHades Ancient Greek god of the dead and king of the underworld
2Ancient GreekᾍδηςHades (Greek god)
3Proto-Indo-Europeann̥-not, un-
4Proto-Indo-Europeannenot
Every word from Proto-Indo-European ne →Every word from Proto-Indo-European n̥- →Every word from Ancient Greek ᾍδης →
Գադես — Etymology, Origin & Word History | Etymology Explorer