PNEUMATOLOGY. Based on what I then knew about New Testament Greek, in the early 1960s I coined the term, which I later found was already in major dictionaries. Then I introduced the word to Wikipedia. From there, the idea grew.
Tabitha, I am quite sure that I still have your address somewhere, but it would probably be easier for you to message it to me again than for me to search for it. I'll be glad to mail you a book.