I. ˈȯr-thə-ˌdäks adjective
Etymology: Middle English orthodoxe, from Middle French or Late Latin; Middle French orthodoxe, from Late Latin orthodoxus, from Late Greek orthodoxos, from Greek orth- + doxa opinion — more at doxology
Date: 15th century
1.
a. : conforming to established doctrine especially in religion
b. : conventional
2. capitalized : of, relating to, or constituting any of various conservative religious or political groups: as
a. : Eastern Orthodox
b. : of or relating to Orthodox Judaism
• or·tho·dox·ly adverb
II. noun
( plural orthodox also or·tho·dox·es )
Date: 1587
1. : one that is orthodox
2. capitalized : a member of an Eastern Orthodox church