Where does “злосчастный” come from?

злосчастный (Russian) comes from Russian сча́стье, from Old East Slavic съчастиѥ, from Proto-Slavic sъčęstьje, from Proto-Slavic sъ-, from Proto-Indo-European h₁su-, from Proto-Indo-European h₁wes- — good; to be cheerful, happy; to eat, to feast.

злосчастный (Russian): ill-starred, ill-fated

Definitions

  1. ill-starred, ill-fated

Ancestry of “злосчастный”, step by step

злосчастный traces back through two separate lines of ancestry.

via Russian сча́стье

StepLanguageWordMeaning
1Russianсча́стьеhappiness, good luck
2Old East Slavicсъчастиѥ—
3Proto-Slavicsъčęstьjehappiness
4Proto-Slavicsъ-good
5Proto-Indo-Europeanh₁su-good
6Proto-Indo-Europeanh₁wes-good; to be cheerful, happy; to eat, to feast

via Russian зло

StepLanguageWordMeaning
1Russianзлоevil, bad, wrong; harm; malice, rage, anger,...
2Old East Slavicзъло—
3Proto-Slavic*zъloevil
Every word from Proto-Indo-European h₁wes- →Every word from Proto-Indo-European h₁su- →Every word from Proto-Slavic sъ- →