Where does “barm” come from?

barm (Old Dutch) comes from Proto-Germanic barmaz, from Indo-European *bʰer-.

Ancestry of “barm”, step by step

StepLanguageWordMeaning
1Proto-Germanicbarmazlap; bosom
2Indo-European*bʰer-—

Words derived from “barm”

Every word from Indo-European *bʰer- →Every word from Proto-Germanic barmaz →
barm — Etymology, Origin & Word History | Etymology Explorer