Where does “vervierfachen” come from?

vervierfachen (German) comes from German vierfach, from German vier, from Middle High German vier, from Old High German fior, from Proto-West Germanic feuwar, from Proto-Germanic fedwōr, from Proto-Indo-European kʷetwóres, from Proto-Indo-European kʷe- — and.

vervierfachen (German): to quadruple, to quadruplicate, to multiply by four

Definitions

  1. to quadruple, to quadruplicate, to multiply by four

Ancestry of “vervierfachen”, step by step

StepLanguageWordMeaning
1Germanvierfachfourfold, quadruple
2Germanvierfour
3Middle High Germanvier—
4Old High Germanfiorfour
5Proto-West Germanicfeuwarfour
6Proto-Germanicfedwōrfour
7Proto-Indo-Europeankʷetwóresfour
8Proto-Indo-Europeankʷe-and

Words derived from “vervierfachen”

Every word from Proto-Indo-European kʷe- →Every word from Proto-Indo-European kʷetwóres →Every word from Proto-Germanic fedwōr →