Where does “смог” come from?

смог (Russian) comes from English smog, from English smoke, from Middle English smoke, from Old English smoca, from Proto-Germanic smukô, from Danish smug- — secretly.

смог (Russian): smog; masculine singular past indicative...

Definitions

  1. smog; masculine singular past indicative...

Ancestry of “смог”, step by step

StepLanguageWordMeaning
1EnglishsmogA noxious mixture of particulates and gases that...
2EnglishsmokeThe visible vapor/vapour, gases, and fine...
3Middle Englishsmokesmoke
4Old Englishsmocasmoke
5Proto-Germanicsmukôsmoke, nebulous air
6Danishsmug-secretly
Every word from Danish smug- →Every word from Proto-Germanic smukô →Every word from Old English smoca →