The story
- Proto-Slavic · derived from*Sъvarogъ
- Old East Slavic · learned borrowing fromСварогъ
- English todaySvarog
Learned borrowing from Old East Slavic Сварогъ (Svarogŭ), ultimately from Proto-Slavic *Sъvarogъ.
Etymology from Wiktionary, CC BY-SA 4.0.