Where does “bior-róst” come from?

bior-róst (Irish) comes from Irish róst, from English roast, from Middle English rosten, from Old French rostir, from Frankish rōstjan, from Proto-Germanic raustijaną, from Proto-Indo-European *Hrews-.

bior-róst (Irish): spitroast

Definitions

  1. spitroast

Ancestry of “bior-róst”, step by step

bior-róst traces back through two separate lines of ancestry.

via Irish róst

StepLanguageWordMeaning
1Irishróstroast
2EnglishroastTo cook food by heating in an oven or over a fire...
3Middle EnglishrostenTo roast or grill; to cook over a griddle; To...
4Old Frenchrostirto roast; to torture by subjecting to fire
5Frankishrōstjanto roast
6Proto-Germanicraustijanąto roast
7Proto-Indo-European*Hrews-

via Irish bior

StepLanguageWordMeaning
1Irishbiorpoint, tip; spike; spur
2Old Irishbirstake, spit, point; spear, spike; water, spring,...
3Proto-Celticberuspit
4Proto-Indo-Europeanbʰrewh₁-to boil; to brew
5Proto-Indo-Europeanbʰer-to bear, carry
Every word from Proto-Indo-European *Hrews-Every word from Proto-Germanic raustijanąEvery word from Frankish rōstjan