It may well be a problem specific to English. In the US terms like “New World Order” have been used by those who warn against a one-world religion, a one-world government, etc. The word “Order” has the meaning of “mandate” or control which Ordo likely doesn’t have in Latin, or other translations. The US dollar bill has the words “novus ordo seculorum”.
It is puzzling that people would use an outdated term, rather than “Ordinary Form”. You use the current term, not the outdated term, for other things, don’t you? The decision to use an outdated or annoying term is not forbidden, it is just stupid. It is like a post with archaic spelling and grammar mistakes. It makes your post less persuasive, it makes you less credible.