Where does “ярко-зелёный” come from?

ярко-зелёный (Russian) comes from Russian зелёный, from Proto-Slavic zelenъ, from Proto-Slavic zelti, from Proto-Indo-European ǵʰelh₃- — to flourish; green, yellow.

ярко-зелёный (Russian): bright green

Definitions

  1. bright green

Ancestry of “ярко-зелёный”, step by step

ярко-зелёный traces back through two separate lines of ancestry.

via Russian зелёный

StepLanguageWordMeaning
1Russianзелёныйgreen; inexperienced, raw; sickly, deathly pale
2Proto-Slaviczelenъgreen
3Proto-Slaviczeltiperhaps to hurt, to sting, to inflict trauma
4Proto-Indo-Europeanǵʰelh₃-to flourish; green, yellow

via Russian я́ркий

StepLanguageWordMeaning
1Russianя́ркийbright
Every word from Proto-Indo-European ǵʰelh₃-Every word from Proto-Slavic zeltiEvery word from Proto-Slavic zelenъ