Where does “беспокойство” come from?

беспокойство (Russian) comes from Russian беспоко́йный, from Russian -ный, from Old Church Slavonic -ьнъ, from Proto-Slavic -ьnъ — -ish, -ic, -al, -ed; From adjectives.

беспокойство (Russian): anxiety, concern, uneasiness, nervousness;...

Definitions

  1. anxiety, concern, uneasiness, nervousness;...

Ancestry of “беспокойство”, step by step

StepLanguageWordMeaning
1Russianбеспоко́йныйuneasy, restive, anxious
2Russian-ный-ish, -ic, -al, -ed
3Old Church Slavonic-ьнъish, -ic, -al, -ed
4Proto-Slavic-ьnъ-ish, -ic, -al, -ed; From adjectives
Every word from Proto-Slavic -ьnъEvery word from Russian -ныйEvery word from Old Church Slavonic -ьнъ