Where does “rectilinear” come from?

Rectilinear comes from Latin rectus, the past participle of rego meaning "to rule or direct," ultimately from Proto-Indo-European h₃reǵ- with the same sense.

rectilinear (English): In a straight line; Formed from straight lines

Definitions

  1. In a straight line; Formed from straight lines

Ancestry of “rectilinear”, step by step

StepLanguageWordMeaning
1Latinrectilineusrectilinear
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 “rectilinear

Every word from Proto-Indo-European h₃reǵ-