Orthodoxy and ...

...orthopraxy.  Orthodoxy is "a pattern of belief and worship...consistent with the fundamental teachings of the Church."

Orthopraxy is "a pattern of Christian behavior ...consistent with the practice of Jesus and the spirit of the gospel."

All that per the Encyclopedia of Catholocism (Harper San Francisco 1995).

But, per the 1913 version of Webster's, orthopraxy is "the treatment of deformities in the human body by mechanical applicances."