Where does “orthodoxy” come from?

Orthodoxy derives from Ancient Greek ὀρθοδοξία, formed from ὀρθόδοξος combining ὀρθός (straight) with δόξα (opinion), from δοκεῖν (to seem), tracing to Proto-Indo-European deḱ- and the adjectival suffix -wós.

orthodoxy (English): Correctness in doctrine and belief; Conformity to...

Definitions

  1. Correctness in doctrine and belief; Conformity to...

Ancestry of “orthodoxy”, step by step

StepLanguageWordMeaning
1Ancient Greekὀρθοδοξίαright opinion
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

Words derived from “orthodoxy”

Every word from Proto-Indo-European -wós →Every word from Proto-Indo-European h₃erdʰ- →Every word from Proto-Indo-European h₃r̥dʰwós →