Where does “bookflap” come from?

bookflap (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.

bookflap (English): The inner part of a book jacket wrapping around a...

Definitions

  1. The inner part of a book jacket wrapping around a...

Ancestry of “bookflap”, step by step

bookflap 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 flap

StepLanguageWordMeaning
1EnglishflapAnything broad and flexible that hangs loose, or...
2Middle Englishflap
Every word from Proto-Indo-European bʰeh₃g-