Where does “окопный” come from?

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

окопный (Russian): foxhole; trench

Definitions

  1. foxhole; trench

Ancestry of “окопный”, step by step

StepLanguageWordMeaning
1Russianокопfoxhole, dugout, trench
2Russianокопа́тьсяto dig in
3Russian-сяReflexive suffix appended to finite verbs and...
4Old East Slavicсѧ—
5Proto-Slavicsęoneself: myself, yourself, himself, herself,...
6Proto-Balto-Slavic*senoneself
7Proto-Indo-Europeanswéself
Every word from Proto-Indo-European swé →Every word from Russian -ся →Every word from Proto-Balto-Slavic *sen →