voskresnik
A Sunday designated for community volunteer work, such as cleaning the streets, after the October Revolution in Russia.
historical
It is necessary to use such forms of sponsorship help as subbotniki and voskresniki [work without pay donated to the state on weekends], more intensively and rationally.
One who took part in this work.
historical
It was young boys and girls in their teens, through their vast organization, the Komsomol, who initiated the movement of the Voskresniki, or voluntary Sunday workers, which was tried out for the first time on Sunday, August 16, 1941.
A member of a Russian sect of Sunday observers.
The Molokane split into Subbotniki (Saturday-observers) and Voskresniki (Sunday-observers). […] Within the Voskresniki, a group following Maksim Popov, a peasant of Samara, organized a colony practicing primitive communism, which did not last long.
Where it comes from
From Russian воскре́сник (voskrésnik), from Russian воскресе́нье (voskresénʹje, “Sunday”) + -ник (-nik).
Adapted from the Wiktionary entry voskresnik (CC BY-SA 4.0).