Where does “স্বপন” come from?

স্বপন (Old Assamese) comes from Sanskrit स्वप्न, from Proto-Indo-Iranian swápnas, from Proto-Indo-European swépnos, from Proto-Indo-European swopnos, from Proto-Indo-European swep- — to sleep.

Ancestry of “স্বপন”, step by step

StepLanguageWordMeaning
1Sanskritस्वप्नsleep, sleeping; dream, dreaming; sleepiness,...
2Proto-Indo-Iranianswápnassleep, sleeping; dreaming
3Proto-Indo-Europeanswépnossleep, slumber
4Proto-Indo-Europeanswopnosdream
5Proto-Indo-Europeanswep-to sleep
Every word from Proto-Indo-European swep- →Every word from Proto-Indo-European swopnos →Every word from Proto-Indo-European swépnos →