Etymology Explorer › English

Where does “pentagonal” come from?

Pentagonal comes from English pentagon, from German Aldehyd, from Ancient Greek πεντάγωνον, πεντάγωνος, πέντε, through Proto-Hellenic and Proto-Indo-European pénkʷe.

pentagonal (English): Of, relating to, or shaped like a pentagon

Definitions

  1. Of, relating to, or shaped like a pentagon

Ancestry of “pentagonal”, step by step

StepLanguageWordMeaning
1EnglishPentagon—
2Middle Frenchpentagone—
3Late Latinpentagonumpentaphyllon
4Ancient Greekπεντάγωνονpentagon
5Ancient Greekπεντάγωνοςfive-angled
6Ancient Greekγωνίαcorner, angle; joiner's square; cornerstone
7Ancient Greekγόνυknee
8Proto-Hellenicgónuknee
9Proto-Indo-Europeanǵónuknee

Words derived from “pentagonal”

  • pentagonally
  • subpentagonal
  • pentagonous
Every word from Proto-Indo-European ǵónu →