PC

[randy_byers]

I never knew that "ortho" meant "correct". Thus "orthodoxy" means "correct belief". So "politically correct" could be understood as another way to say "orthodox", which is probably pretty close to how it was used in the Marxist-Leninist context, before it became a libertarian pejorative.

Comments

[crowleycrow.livejournal.com]

Yes, setting straight. Also in "orthodontics," e.g.