Where does “billfold” come from?

billfold (English) comes from English Bill, from Middle English bill, from Old English bil, from Frankish billi, from Proto-Germanic bilją, from Proto-Germanic harjaz, from Proto-Indo-European kóryos, from Proto-Indo-European ḱer- — army.

billfold (English): A small, folding sleeve or case designed to hold...

Definitions

  1. A small, folding sleeve or case designed to hold...

Ancestry of “billfold”, step by step

billfold traces back through two separate lines of ancestry.

via English Bill

StepLanguageWordMeaning
1EnglishBillA nickname for the British constabulary. Often called "The Bill" or "Old Bill"
2Middle Englishbill
3Old Englishbila kind of sword or other bladed weapon,...
4Frankishbilli
5Proto-Germanicbiljąa cutting implement; blade; axe; sword; spike;...
6Proto-Germanicharjazarmy; army leader; commander; warrior
7Proto-Indo-Europeankóryoswar; troops; army; war, troops
8Proto-Indo-Europeanḱer-to grow, to make grow, to nourish; to plait,...
9Proto-Indo-Europeankr̥-to turn, to bend
10Proto-Indo-Europeanker-army

via English fold

StepLanguageWordMeaning
1EnglishfoldTo bend over so that it comes in contact with...
2Middle EnglishfoldA pen, enclosure, or shelter for domesticated animals
3Old Englishfald
4Proto-Germanicfaludazan enclosed space, enclosure
Every word from Proto-Indo-European ker-