Where does “Джедедайя” come from?

Джедедайя (Russian) comes from English Jedediah, from English Jedidiah, from Hebrew יְדִידְיָה — beloved of Yahweh.

Ancestry of “Джедедайя”, step by step

StepLanguageWordMeaning
1EnglishJedediahof biblical origin
2EnglishJedidiah
3Hebrewיְדִידְיָהbeloved of Yahweh
Every word from Hebrew יְדִידְיָהEvery word from English JedidiahEvery word from English Jedediah