Where does “обсесть” come from?

обсесть (Russian) comes from Russian сесть, from Old East Slavic сѣсти, from Proto-Slavic sěsti, from Proto-Balto-Slavic *sḗˀstei, from Proto-Indo-European sḗd- — to sit.

обсесть (Russian): to sit around something

Definitions

  1. to sit around something

Ancestry of “обсесть”, step by step

обсесть traces back through two separate lines of ancestry.

via Russian сесть

StepLanguageWordMeaning
1Russianсестьto sit down; to be imprisoned; to become flat, to...
2Old East Slavicсѣсти
3Proto-Slavicsěstito sit down
4Proto-Balto-Slavic*sḗˀsteito sit down
5Proto-Indo-Europeansḗd-to sit

via Russian об–

StepLanguageWordMeaning
1Russianоб–before certain letters
Every word from Proto-Indo-European sḗd-Every word from Proto-Balto-Slavic *sḗˀsteiEvery word from Proto-Slavic sěsti