Where does “очистка” come from?

очистка (Russian) comes from Russian очи́стить, from Russian чи́стить, from Proto-Slavic čistiti, from Proto-Slavic čistъ, from Proto-Balto-Slavic skīstas, from Proto-Indo-European skidtos, from Proto-Indo-European (s)keyd-.

очистка (Russian): cleaning, purification, clearing, refinement;...

Definitions

cleaning, purification, clearing, refinement;...

Ancestry of “очистка”, step by step

Step	Language	Word	Meaning
1	Russian	очи́стить	to clean, to cleanse, to purify, to purge
2	Russian	чи́стить	to clean, to scour
3	Proto-Slavic	čistiti	to clean, purify
4	Proto-Slavic	čistъ	clean, pure
5	Proto-Balto-Slavic	skīstas	—
6	Proto-Indo-European	skidtos	split
7	Proto-Indo-European	(s)keyd-	—

Words derived from “очистка”

очистной

Every word from Proto-Indo-European (s)keyd- →Every word from Proto-Indo-European skidtos →Every word from Proto-Balto-Slavic skīstas →