Where does “пыленепроницаемый” come from?

пыленепроницаемый (Russian) comes from Russian пыль, from Proto-Slavic pylъ — glow?, heat?.

пыленепроницаемый (Russian): dustproof, dust-tight

Definitions

  1. dustproof, dust-tight

Ancestry of “пыленепроницаемый”, step by step

пыленепроницаемый traces back through two separate lines of ancestry.

via Russian пыль

StepLanguageWordMeaning
1Russianпыльdust
2Proto-Slavicpylъglow?, heat?

via Russian непроница́емый

StepLanguageWordMeaning
1Russianнепроница́емыйimpenetrable, impervious, impermeable, proof, tight
Every word from Proto-Slavic pylъ →Every word from Russian пыль →