Where does “sumny” come from?

sumny (Polish) comes from Ukrainian сумни́й, from Ukrainian -ни́й, from Proto-Slavic -ьnъ — -ish, -ic, -al, -ed; From adjectives.

sumny (Polish): doleful, gloomy, sullen

Definitions

  1. doleful, gloomy, sullen

Ancestry of “sumny”, step by step

StepLanguageWordMeaning
1Ukrainianсумни́йsad, mournful, dismal
2Ukrainian-ни́йUsed to form adjectives from nouns; -ish, -y
3Proto-Slavic-ьnъ-ish, -ic, -al, -ed; From adjectives
Every word from Proto-Slavic -ьnъ →Every word from Ukrainian -ни́й →Every word from Ukrainian сумни́й →