1934, a ghost word printed in "Webster's New International Dictionary" and defined as a noun used by physicists and chemists, meaning "density." In sorting out and separating abbreviations from words in preparing the dictionary's second edition, a card marked "D or d" meaning "density" somehow migrated from the "abbreviations" stack to the "words" stack. The "D or d" entry ended up being typeset as a word, dord, and defined as a synonym for density. The mistake was discovered in 1939.
Examples from the Web for dord
And the word “dord,” one of the strangest in the whole dictionary, is known as a “ghost word.”What's the Difference Between Ghouls, Goblins, and Ghosts?|Dictionary.com|November 1, 2010|DAILY BEAST
So Finn sounded the Dord Fiann, and they answered with a shout, every one hurrying to be the first.
Finn sounded the Dord Fiann then, and Daire played some sorrowful music to let their people know where they were.