Where does “беззвучно” come from?

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

беззвучно (Russian): soundlessly, noiselessly, silently

Definitions

  1. soundlessly, noiselessly, silently

Ancestry of “беззвучно”, step by step

беззвучно traces back through two separate lines of ancestry.

via Russian беззву́чный

StepLanguageWordMeaning
1Russianбеззву́чныйsilent, without sound
2Russianзвукsound
3Proto-Slaviczvǫkъsound
4Proto-Slavic-kъDeverbal, forms token nouns; From expressive or...
5Proto-Indo-European-kosCreates deadjectival and desubstantival...

via Ukrainian беззву́чний

StepLanguageWordMeaning
1Ukrainianбеззву́чнийsoundless, silent
Every word from Proto-Indo-European -kosEvery word from Proto-Slavic -kъEvery word from Proto-Slavic zvǫkъ