Where does “бесан” come from?

бесан (Serbo-Croatian) comes from Serbo-Croatian сан, 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.

бесан (Serbo-Croatian): furious; sleepless

Definitions

  1. furious; sleepless

Ancestry of “бесан”, step by step

бесан traces back through two separate lines of ancestry.

via Serbo-Croatian сан

StepLanguageWordMeaning
1Serbo-Croatianсанdream
2Proto-Slavicsъ̀nъsleep, dream
3Proto-Balto-Slavicsupnassleep, dream
4Proto-Indo-Europeansupnóssleep; death
5Proto-Indo-Europeanswóp-r̥ ~ swép-n̥s—
6Proto-Indo-Europeanswep-to sleep

via Serbo-Croatian без

StepLanguageWordMeaning
1Serbo-Croatianбезwithout, excluding, not counting; linen, canvas;...
2Proto-Slavicbezwithout
3Proto-Indo-European*bʰeǵʰs—
Every word from Proto-Indo-European swep- →Every word from Proto-Indo-European swóp-r̥ ~ swép-n̥s →Every word from Proto-Indo-European supnós →
бесан — Etymology, Origin & Word History | Etymology Explorer