Where does “ὀρθογώνιος” come from?

ὀρθογώνιος (Ancient Greek) comes from Ancient Greek ὀρθός, from Proto-Hellenic ortʰwós, from Proto-Indo-European h₃r̥dʰwós, from Proto-Indo-European h₃erdʰ-, from Proto-Indo-European -wós — Creates adjectives from verb stems.

ὀρθογώνιος (Ancient Greek): right-angled; rectangular

Definitions

  1. right-angled; rectangular

Ancestry of “ὀρθογώνιος”, step by step

ὀρθογώνιος traces back through two separate lines of ancestry.

via Ancient Greek ὀρθός

StepLanguageWordMeaning
1Ancient Greekὀρθόςstraight, upright, erect; straight forward, in a...
2Proto-Hellenicortʰwós
3Proto-Indo-Europeanh₃r̥dʰwós
4Proto-Indo-Europeanh₃erdʰ-to increase, grow; upright, high
5Proto-Indo-European-wósCreates adjectives from verb stems

via Ancient Greek γωνίᾱ

StepLanguageWordMeaning
1Ancient Greekγωνίᾱcorner; angle

Words derived from “ὀρθογώνιος

Every word from Proto-Indo-European -wósEvery word from Proto-Indo-European h₃erdʰ-Every word from Proto-Indo-European h₃r̥dʰwós
ὀρθογώνιος — Etymology, Origin & Word History | Etymology Explorer