Where does “tetractys” come from?

tetractys (English) comes from Ancient Greek τετρακτύς, from Ancient Greek τετράς, from Proto-Indo-European kʷetwóres, from Proto-Indo-European kʷe- — and.

tetractys (English): A triangular figure consisting of ten points...

Definitions

  1. A triangular figure consisting of ten points...

Ancestry of “tetractys”, step by step

StepLanguageWordMeaning
1Ancient GreekτετρακτύςPythagorean name for
2Ancient Greekτετράςthe number four; tetrarchy; four-leaved pamphlet,...
3Proto-Indo-Europeankʷetwóresfour
4Proto-Indo-Europeankʷe-and
Every word from Proto-Indo-European kʷe- →Every word from Proto-Indo-European kʷetwóres →Every word from Ancient Greek τετράς →