Common misspelling  Because the exclusion of the Umlaut mark is nine times out of ten not intentional I have changed the beginning text of this article from commonly misspelled to alternately spelled This is because of the extreme difficulty involved in inserting the symbol especially in or on websites or webpages or any place that the code for the symbol must be used This is usually not intentional this is done out of lack of knowledge Please see the article on misspelling By the way the list of famous accidental misspellings is pretty interesting