Each word in the above title has a repeated letter. Remove those repeated letters and new words emerge: MINUS, WORDY, AXIS. Such words, which drop a repeated letter to form a new word, number in the thousands. When technical and proper nouns are ignored, they still number around a thousand. Such words amuse us by their transformations, and give rise to several non-trivial studies.
"Ominous Worldly Maxims,"
Word Ways: Vol. 24
, Article 16.
Available at: http://digitalcommons.butler.edu/wordways/vol24/iss3/16