Where does “book bag” come from?

book bag (English) comes from English Book, from German būch, from Middle High German buoch, from Old High German buoh, from Proto-Germanic bōk, from Proto-Germanic bakaną, from Proto-Indo-European bʰeh₃g- — to bake, to roast, to fry.

book bag (English): A bag for holding books for school

Definitions

  1. A bag for holding books for school

Ancestry of “book bag”, step by step

book bag traces back through two separate lines of ancestry.

via English Book

StepLanguageWordMeaning
1EnglishBookthe Bible
2Germanbūchbook collection of sheets of paper bound together to hinge at one edge; long work fit for publication
3Middle High Germanbuoch
4Old High Germanbuohbook
5Proto-Germanicbōk
6Proto-Germanicbakanąto bake
7Proto-Indo-Europeanbʰeh₃g-to bake, to roast, to fry

via English bag

StepLanguageWordMeaning
1EnglishbagA flexible container made of cloth, paper,...
2Middle EnglishbaggeA fabric container; a bag, sack, pouch, purse, or...
3Old Norsebaggibag, pack, satchel, bundle
4Proto-Indo-Europeanbʰak-
Every word from Proto-Indo-European bʰeh₃g-Every word from Proto-Germanic bakanąEvery word from Proto-Germanic bōk