One of Steven Moffat's truly dumbest nonsensical Doctor Who ideas that I see few people question is that the word "Doctor" is derived from the Doctor's name rather than the other way around, i.e. the word "doctor" means "healer and wise man throughout the universe" due to association with the Doctor.
The problem with this is... no it doesn't!! Oh, all over the universe the "doctor" means that except on Earth where it only means that in like a couple languages and even cognates like docteur don't have the same connotations
and also like we know where the word comes from, it's not a mystery like the word dog where it just appeared at some point, we can trace it back to latin and even proto-indo-european and it did not always mean the same thing
and again, the majority of the world's languages do not have that word at all and words for "healer" or "physician" are not the same as the words for "wise man" or "teacher" or anything similar most of the time
it just makes no sense!
