Where does “усрусич” come from?

усрусич (Russian) comes from Russian усраться, from Russian -ся, from Old East Slavic сѧ, from Proto-Slavic sę, from Proto-Balto-Slavic *sen, from Proto-Indo-European swé — self.

усрусич (Russian): Ruski

Definitions

  1. Ruski

Ancestry of “усрусич”, step by step

усрусич traces back through two separate lines of ancestry.

via Russian усраться

StepLanguageWordMeaning
1Russianусратьсяto shit one's pants, to shit oneself
2Russian-сяReflexive suffix appended to finite verbs and...
3Old East Slavicсѧ
4Proto-Slaviconeself: myself, yourself, himself, herself,...
5Proto-Balto-Slavic*senoneself
6Proto-Indo-Europeanswéself

via Russian рус

StepLanguageWordMeaning
1Russianрусshort masculine singular of ру́сый; a...
Every word from Proto-Indo-European swéEvery word from Russian -сяEvery word from Proto-Balto-Slavic *sen