Where does “беззвучен” come from?

беззвучен (Bulgarian) comes from Bulgarian звук, from Russian звук, from Proto-Slavic zvǫkъ, from Proto-Slavic -kъ, from Proto-Indo-European -kos — Creates deadjectival and desubstantival...

беззвучен (Bulgarian): soundless

Definitions

  1. soundless

Ancestry of “беззвучен”, step by step

StepLanguageWordMeaning
1Bulgarianзвукsound
2Russianзвукsound
3Proto-Slaviczvǫkъsound
4Proto-Slavic-kъDeverbal, forms token nouns; From expressive or...
5Proto-Indo-European-kosCreates deadjectival and desubstantival...
Every word from Proto-Indo-European -kos →Every word from Proto-Slavic -kъ →Every word from Proto-Slavic zvǫkъ →