Where does “Pentagon” come from?

Pentagon (German) comes from English Pentagon, from Middle French pentagone, from Late Latin pentagonum, from Ancient Greek πεντάγωνον, from Ancient Greek πεντάγωνος, from Ancient Greek γωνία, from Ancient Greek γόνυ, from Proto-Hellenic gónu — knee.

Pentagon (German): the headquarters of the United States of...

Definitions

  1. the headquarters of the United States of...

Ancestry of “Pentagon”, step by step

StepLanguageWordMeaning
1EnglishPentagonThe headquarters of the United States Department of Defense
2Middle Frenchpentagone
3Late Latinpentagonumpentaphyllon
4Ancient Greekπεντάγωνονpentagon
5Ancient Greekπεντάγωνοςfive-angled
6Ancient Greekγωνίαcorner, angle; joiner's square; cornerstone
7Ancient Greekγόνυknee
8Proto-Hellenicgónuknee
9Proto-Indo-Europeanǵónuknee
Every word from Proto-Indo-European ǵónuEvery word from Proto-Hellenic gónuEvery word from Ancient Greek γόνυ