Where does “oatbread” come from?

oatbread (English) comes from English bread, from Middle English bred, from Old English bred, from Old English -en, from Old Norse -inn, from Proto-Norse -īna-, from Proto-Germanic -īnaz, from Proto-Indo-European -iHnos — adjectival suffix.

oatbread (English): bread made with oatmeal

Definitions

  1. bread made with oatmeal

Ancestry of “oatbread”, step by step

oatbread traces back through two separate lines of ancestry.

via English bread

StepLanguageWordMeaning
1EnglishbreadA foodstuff made by baking dough made from...
2Middle Englishbredbread, pastry; food, nourishment
3Old Englishbredsurface; plank, board; table, tablet
4Old English-enmæġþ + API → mæġden; cocc + API → cycen, cicen;...
5Old Norse-innUsed to create adjectives from nouns, meaning...
6Proto-Norse-īna-
7Proto-Germanic-īnaz-en
8Proto-Indo-European-iHnosCreates adjectives of materials
9Proto-Indo-European-no-adjectival suffix

via English oat

StepLanguageWordMeaning
1EnglishoatWidely cultivated cereal grass, typically "Avena...
2Middle EnglishoteThe oat plant; A grain of this plant
3Old Englishāteoat
4Proto-Balticaitā
5Proto-Germanicaitǭswelling; swelling; gland; nodule
6Proto-Indo-Europeanh₁eid-to swell
Every word from Proto-Indo-European -no-