Webster's Revised Unabridged Dictionary · 1913

Orthodoxy

Orthodoxy , noun

[Greek {not transcribed}: compare French orthodoxie. See Orthodox.]

1.
Soundness of faith; a belief in the doctrines taught in the Scriptures, or in some established standard of faith; -- opposed to heterodoxy or to heresy.
Basil himself bears full and clear testimony to Gregory's orthodoxy. — Waterland
2.
Consonance to genuine Scriptural doctrines; -- said of moral doctrines and beliefs; as, the orthodoxy of a creed.
3.
By extension, said of any generally accepted doctrine or belief; the orthodox practice or belief.