'Author' is a verb
You might author something even if you are not a writer
For all the dreamers typing in the corners of coffee shops, transforming from a writer to an author might seem like the ultimate fantasy. But what those frantic scribblers may not know is author, used as a verb, vanished from our lexicon for centuries.
The verb author has a very strange history marked by a large gap of disuse. It first appears in the late 1500s with both definitions that are in use today—"to be the author of" and "to originate or create"—but inexplicably the verb nearly disappeared from about the mid-1600s to the early 1900s.
Writers did occasionally employ the participial form authoring as a noun during the 18th and 19th centuries.
There are certain mysteries or secrets in all trades, from the highest to the lowest, from that of primeministering to this of authoring, which are seldom discovered, unless to members of the same calling. — Henry Fielding, Joseph Andrews, 1742
Mr. Muggyson, permit me to ask you what d'ye think of my authoring? Is it not slap—to the point? — Thomas Hall, "Effects" and Adventures of Raby Rattler, 1845
There is also evidence of writers using authored as an adjective in the late 19th century.
It is one of his double-authored pieces; and at present I incline to allow to Jonson little more than the prose, or comic scenes. — Antiquary, 1882
It is over 300 years after its debut in the English language, however, that author emerges from the abyss of obsolescence as a standard verb in both of its original senses. One of the earliest 20th-century examples of author meaning "to make or create" comes from a sportswriter. That might seem a bit surprising, but it shows that the verb was experiencing a genuine rebirth.
... when Buddy Maracle authored the goal which roused the ire of Coach Eddie Powers. — J. Earl Chevalier, The Springfield (Massachusetts) Republican, 22 Jan. 1931
Although the verb uncannily returned to the living language, it wasn't fully embraced. Some critics viewed it as a pretentious substitute for write that was to be avoided. Careful writers, however, helped introduce it to the general lexicon as a word having a slightly different use than the common verb write: essentially, author came to be used for writing entailing thorough editing and vetting, especially in preparation for publication. This unique use gave author a connotation not commonly associated with the general verb write. One authors a book or a screenplay, for instance, but not a school essay.
Authored by corrosion engineers and steel pile specialists, the book provides an in-depth study of the problems and remedies associated with corrosion of steel piles. — Civil Engineering, November 1981
… all of these books were authored by U.S.-educated anthropologists who did their fieldwork … during the late 1970s and early 1980s…. — Andrew Kipnis, American Anthropologist, June 2003
… Journey's End, first produced in 1928 by James Whale (who later directed Frankenstein) and written by R.C. Sherriff, who also authored the screenplays for The Invisible Man and Goodbye, Mr. Chips. — John Haney, Gourmet, March 2005