Where does “легковесный” come from?

легковесный (Russian) comes from Russian ве́с, from Proto-Slavic vьśь, from Proto-Indo-European weyḱ-, from Proto-Indo-European wey- — to wither; fade; to move, go ahead; to be strong;...

легковесный (Russian): lightweight

Definitions

  1. lightweight

Ancestry of “легковесный”, step by step

легковесный traces back through two separate lines of ancestry.

via Russian ве́с

StepLanguageWordMeaning
1Russianве́сweight
2Proto-Slavicvьśьall
3Proto-Indo-Europeanweyḱ-to enter in; to settle; settlement
4Proto-Indo-Europeanwey-to wither; fade; to move, go ahead; to be strong;...

via Russian лёгкий

StepLanguageWordMeaning
1Russianлёгкийlight, lightweight; easy, facile, slight; lucky
2Proto-Slaviclьgъkъlight
3Proto-Indo-Europeanh₁lengʷʰ-light
Every word from Proto-Indo-European wey- →Every word from Proto-Indo-European weyḱ- →Every word from Proto-Slavic vьśь →