Where does “Siiteri” come from?

Siiteri (Ingrian) comes from Russian Си́дор, from Ancient Greek Ἰσίδωρος, from Ancient Greek δῶρον, from Proto-Hellenic dṓron, from Proto-Indo-European déh₃rom, from Proto-Indo-European deh₃- — to give.

Ancestry of “Siiteri”, step by step

StepLanguageWordMeaning
1RussianСи́дор
2Ancient GreekἸσίδωρος
3Ancient Greekδῶρονgift; hand's width
4Proto-Hellenicdṓrongift
5Proto-Indo-Europeandéh₃romgift
6Proto-Indo-Europeandeh₃-to give
Every word from Proto-Indo-European deh₃-Every word from Proto-Indo-European déh₃romEvery word from Proto-Hellenic dṓron