- Confidence
- Established
- Formation
- Borrowing
- First attested
- c. 1454
- Borrowed from
- Middle French orthodoxe
- Ultimate origin
- Ancient Greek (ὀρθόδοξος)
Pronunciation
- IPA: UK /ˈɔː.θə.dɒks/, US /ˈɔːr.θə.dɑːks/[1]
Etymology
It is borrowed from Middle French orthodoxe and directly Late Latin orthodoxus,[2][3][4] from Ancient Greek ὀρθόδοξος (orthódoxos, “having the right opinion”),[2][3][5] from ὀρθός (orthós, “straight, right, true”) (see ortho-) and δόξα (dóxa, “opinion, praise”) (see doxology),[2][3][5] from δοκέω (dokéō, “to seem”),[3][5] from Proto-Indo-European *dek- (“to take, accept”).[3]
Earliest recorded meaning
Of theological opinion, regarded as correct: about 1454, as ortodox, and 1456, as orthodoxe;[2] the mid-15th century in Etymonline.[3]
Semantic evolution
It was applied to subjects other than religion from the 1640s,[3][6] and meant conventional or approved from 1838.[6] As the name of the Eastern Church it is from 1679 in the OED, 1772 in Barnhart and Etymonline;[6][2][3] it first distinguished that Church from groups within it that differed in doctrine.[2] Of Judaism adhering strictly to rabbinical law it is from 1853,[3][6] and an Orthodox Jew is an Orthodox by 1889.[3] Orthodoxy is from the 17th century.[5]
Timeline
- c. 1454 – orthodox (theology).[2]
- 1640s – of other subjects.[3]
- 1679 – the Eastern Church.[6]
- 1838 – conventional.[6]
- 1853 – Orthodox Judaism.[3][6]
Modern meaning
Adjective
- Conforming to established or accepted beliefs and standards, especially in religion.
- Conventional; generally approved.
- Conforming to the Christian faith as set out in the early creeds.
- (usually capitalized) Of the Eastern Orthodox Church.
- (sometimes capitalized) Of Orthodox Judaism, which strictly observes rabbinical law and tradition.
Noun
- An orthodox person.
- A member of an Eastern Orthodox church.
Word family
- orthodoxly
- orthodoxness
- antiorthodox
- hyperorthodox
Related words
- Eastern Orthodox
- Greek Orthodox
- orthodoxy
- Russian Orthodox Church
- heterodox
- paradox
- doxology
- ortho-
References
- ^ Jones, Daniel (2011), Cambridge English Pronouncing Dictionary, 18th ed., ed. Peter Roach, Jane Setter and John Esling, Cambridge: Cambridge University Press
- ^ a b c d e f g Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
- ^ a b c d e f g h i j k l Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
- ^ Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
- ^ a b c d Hoad, T. F., ed. (1986), The Concise Oxford Dictionary of English Etymology, Oxford: Clarendon Press
- ^ a b c d e f g Simpson, J. A.; Weiner, E. S. C., eds. (1989), The Oxford English Dictionary, 2nd ed., Oxford: Clarendon Press
Related etymologies
Cite this entry
“Orthodox.” Etymologically, 17 Oct. 2026, etymologically.com/en/orthodox. Accessed 17 Oct. 2026.
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