Where does “ros” come from?

ros (Tok Pisin) comes from German rōst, from Middle High German rōst, from Old High German rōst, from Old French rostir, from Frankish rōstjan, from Proto-Germanic raustijaną, from Proto-Indo-European *Hrews-.

ros (Tok Pisin): rust

Definitions

  1. rust

Ancestry of “ros”, step by step

StepLanguageWordMeaning
1Germanrōstroofing frame
2Middle High Germanrōst—
3Old High Germanrōst—
4Old Frenchrostirto roast; to torture by subjecting to fire
5Frankishrōstjanto roast
6Proto-Germanicraustijanąto roast
7Proto-Indo-European*Hrews-—
Every word from Proto-Indo-European *Hrews- →Every word from Proto-Germanic raustijaną →Every word from Frankish rōstjan →