Where does “покойница” come from?

покойница (Russian) comes from Proto-Slavic pokojь, from Proto-Slavic po- — after.

покойница (Russian): a female deceased

Definitions

  1. a female deceased

Ancestry of “покойница”, step by step

StepLanguageWordMeaning
1Proto-Slavicpokojьrest
2Proto-Slavicpo-after
Every word from Proto-Slavic po-Every word from Proto-Slavic pokojь