Dord isn’t a word but it was in the dictionary. It was added in 1934, then noted for deletion in 1939, but not removed until 1947. Its addition was an error.
Cromulent, (which means acceptable or adequate), wasn’t a word. It became one, on February 18th, 1996 as Jonathan Collier’s writing credit faded from an episode of “The Simpsons.” (The episode was “Lisa the Iconoclast”).
Word constables and phonomonitors abound. They chide people when they blend the rules. They feel their charge is to defend language from the dords of the world gaining cromulence. But if language is a citadel they defend, someone is bound to spray paint its walls.
Making up words is street art.