Where does “самообслуживание” come from?

самообслуживание (Russian) comes from Russian само́-, from Russian сам, from Old East Slavic самъ, from Proto-Slavic samъ, from Proto-Balto-Slavic *sāmas, from Proto-Indo-European somHós, from Proto-Indo-European sem- — together, one.

самообслуживание (Russian): self-service

Definitions

  1. self-service

Ancestry of “самообслуживание”, step by step

StepLanguageWordMeaning
1Russianсамо́-self-
2Russianсамself, -self
3Old East Slavicсамъself, oneself, alone
4Proto-Slavicsamъself, oneself
5Proto-Balto-Slavic*sāmas—
6Proto-Indo-EuropeansomHóssame, alike
7Proto-Indo-Europeansem-together, one
Every word from Proto-Indo-European sem- →Every word from Proto-Indo-European somHós →Every word from Proto-Balto-Slavic *sāmas →