Where does “rust” come from?

rust (Norwegian Nynorsk) comes from Proto-Germanic rustaz, from Proto-Indo-European rudʰso-, from Proto-Indo-European h₁rewdʰ- — red.

rust (Norwegian Nynorsk): rust; past participle of rusa

Definitions

  1. rust; past participle of rusa

Ancestry of “rust”, step by step

StepLanguageWordMeaning
1Proto-Germanicrustazrust
2Proto-Indo-Europeanrudʰso-red
3Proto-Indo-Europeanh₁rewdʰ-red
Every word from Proto-Indo-European h₁rewdʰ- →Every word from Proto-Indo-European rudʰso- →Every word from Proto-Germanic rustaz →
rust — Etymology, Origin & Word History | Etymology Explorer