Where does “roost” come from?

roost (Middle Dutch) comes from Frankish raustjan, from Proto-Germanic raustijaną, from Proto-Indo-European *Hrews-.

Ancestry of “roost”, step by step

StepLanguageWordMeaning
1Frankishraustjan
2Proto-Germanicraustijanąto roast
3Proto-Indo-European*Hrews-
Every word from Proto-Indo-European *Hrews-