Where does “orthodox” come from?

Orthodox comes from Late Latin orthodoxus, from Ancient Greek ὀρθόδοξος, combining ὀρθός (straight) and δόξα (opinion), ultimately from Proto-Indo-European roots meaning to hold or regard.

orthodox (English): Conforming to the accepted, established, or...

Definitions

  1. Conforming to the accepted, established, or...

Ancestry of “orthodox”, step by step

StepLanguageWordMeaning
1Late Latinorthodoxusorthodox
2Ancient Greekὀρθόδοξοςorthodox
3Ancient Greekὀρθόςstraight, upright, erect; straight forward, in a...
4Proto-Hellenicortʰwós
5Proto-Indo-Europeanh₃r̥dʰwós
6Proto-Indo-Europeanh₃erdʰ-to increase, grow; upright, high
7Proto-Indo-European-wósCreates adjectives from verb stems
Every word from Proto-Indo-European -wósEvery word from Proto-Indo-European h₃erdʰ-Every word from Proto-Indo-European h₃r̥dʰwós
orthodox — Etymology, Origin & Word History | Etymology Explorer