barm
verbEtymology From Middle English bermen, from the noun (see above).
noun, verb — 5 senses
UK /bɑːm/ · US /bɑɹm/
Etymology From Middle English barm, barme, berm, bearm, from Old English bearm (“lap; bosom”), from Proto-West Germanic *barm, from Proto-Germanic *barmaz (“lap; bosom”), from Proto-Indo-European *bʰer- (“to bear”). Cognate with German Barm (“lap; bosom”).
Etymology From Middle English bermen, from the noun (see above).
Etymology From Middle English berme, berm, from Old English beorma, from Proto-West Germanic *bermō (“yeast; barm”); related to the dialectal Low German Bärm (“yeast”), from Middle Low German barm, berm. The cake sense is possibly a shortened form of barmcake, which would be made with yeast as described in that sense, or possibly it is from the Irish bairín breac, a type of bread.
Dialectal, Obsolete Foam rising upon beer or other malt liquors when fermenting, used as leaven in brewing and making bread; yeast.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.