Thread:MalaCassida/@comment-25936766-20160923123833/@comment-26397825-20160923133002

As Someone said, the 'stupid stuff' only finds its way into the dictionary after it has been widely accepted as a word by the majority of people, including its common meaning. So for wyvern to be in the dictionary, it means that a lot of people know the word, have said the word, and have found a common meaning of the word.

Which is a far cry from your point about 'small areas of fiction' and 'very few areas'.