Where does “pentagonal” come from?

pentagonal (Catalan) comes from Catalan pentàgon, from Catalan penta-, from Ancient Greek πεντα-, from Ancient Greek πέντε, from Proto-Hellenic pénkʷe, from Proto-Indo-European pénkʷe — five.

pentagonal (Catalan): pentagonal

Definitions

  1. pentagonal

Ancestry of “pentagonal”, step by step

StepLanguageWordMeaning
1Catalanpentàgonpentagon
2Catalanpenta-penta
3Ancient Greekπεντα-penta-, five; five
4Ancient Greekπέντεfive
5Proto-Hellenicpénkʷefive
6Proto-Indo-Europeanpénkʷefive
Every word from Proto-Indo-European pénkʷe →