Where does “сънъ” come from?

сънъ (Old East Slavic) comes from Proto-Slavic sъ̀nъ, from Proto-Balto-Slavic supnas, from Proto-Indo-European supnós, from Proto-Indo-European swóp-r̥ ~ swép-n̥s, from Proto-Indo-European swep- — to sleep.

сънъ (Old East Slavic): dream

Definitions

  1. dream

Ancestry of “сънъ”, step by step

StepLanguageWordMeaning
1Proto-Slavicsъ̀nъsleep, dream
2Proto-Balto-Slavicsupnassleep, dream
3Proto-Indo-Europeansupnóssleep; death
4Proto-Indo-Europeanswóp-r̥ ~ swép-n̥s
5Proto-Indo-Europeanswep-to sleep
Every word from Proto-Indo-European swep-Every word from Proto-Indo-European swóp-r̥ ~ swép-n̥sEvery word from Proto-Indo-European supnós