Where does “triangulus” come from?

triangulus (Latin) comes from Latin Angulus, from Proto-Indo-European h₂engulos, from Proto-Indo-European h₂eng- — curve, bend.

triangulus (Latin): triangular, three-cornered, three-sided;...

Definitions

  1. triangular, three-cornered, three-sided;...

Ancestry of “triangulus”, step by step

triangulus traces back through two separate lines of ancestry.

via Latin Angulus

StepLanguageWordMeaning
1LatinAngulusA city of the Vestini, situated on a hill near the Adriatic Sea, now the town of Città Sant'Angelo
2Proto-Indo-Europeanh₂engulosjoint?
3Proto-Indo-Europeanh₂eng-curve, bend

via Latin trēs

StepLanguageWordMeaning
1Latintrēsthree; 3
2Proto-Italictrēsthree
3Proto-Indo-European*tréyes—

Words derived from “triangulus”

Every word from Proto-Indo-European h₂eng- →
triangulus — Etymology, Origin & Word History | Etymology Explorer