The Challenge of Dating Abbreviations

lexicographer: We enter abbreviations when we have substantial evidence of them in published, edited texts from over an extended period of time. But our process of dating these terms goes back to sources like the ones that gretchen mc cullock is citing in this book. Some dictionaries would only use words for movies if they had a copy of the script,. If the word's being used, it's clearly being used. Every dictionary has their own criteria for this sort of thing.