sleď (Czech) comes from Russian сельдь, from Old East Slavic сельдь, from Old East Slavic сьлдь, from Old Norse síld, from Proto-Germanic sīlą — a kind of fish; a launce, sand eel; a herring.
sleď (Czech): herring
Definitions
herring
Ancestry of “sleď”, step by step
sleď traces back through two separate lines of ancestry.