Where does “chip barm” come from?

chip barm (English) comes from English barm, from Middle English barm, from Old English bearm, from Proto-West Germanic *barm, from Proto-Germanic barmaz, from Indo-European *bʰer-.

Ancestry of “chip barm”, step by step

chip barm traces back through two separate lines of ancestry.

via English barm

StepLanguageWordMeaning
1EnglishbarmBosom, lap; Foam rising upon beer, or other malt...
2Middle EnglishbarmThe lap; chest, torso, abdomen; belly, stomach
3Old Englishbearmbosom, lap; possession
4Proto-West Germanic*barmlap
5Proto-Germanicbarmazlap; bosom
6Indo-European*bʰer-

via English Chip

StepLanguageWordMeaning
1EnglishChipA diminutive of the male given names Christopher and Charles
2Middle Englishchipfragment, worthless thing; chip, shard, fragment
3Old Englishċippchip; small piece of wood; chip, splinter,...
4Old Englishċippianto cut; hew
5Proto-Germanickipp-to chop; split; to cut; carve; hack; chop
6Proto-Indo-Europeanǵey-to split; divide; germinate; sprout; to split;...
Every word from Indo-European *bʰer-Every word from Proto-Germanic barmazEvery word from Proto-West Germanic *barm