Where does “rectangle” come from?

Rectangle comes from Latin rectangulum, composed of Latin rectus (straight) and Latin angulus (corner), both ultimately from Proto-Indo-European h₃reǵ- meaning to straighten or direct.

rectangle (English): A quadrilateral having opposing sides parallel...

Definitions

  1. A quadrilateral having opposing sides parallel...

Ancestry of “rectangle”, step by step

StepLanguageWordMeaning
1Latinrectangulumnominative neuter singular of rēctangulus;...
2Latinrēctusled straight along, drawn in a straight line, straight, upright
3Latinregōto rule, govern, direct
4Proto-Italicregō
5Proto-Indo-Europeanh₃réǵetito be straightening, to be setting upright
6Proto-Indo-Europeanh₃reǵ-to straighten, to right oneself; right; just

Words derived from “rectangle

Every word from Proto-Indo-European h₃reǵ-