The word "misspelled" refers to a word that has been written incorrectly, where the letters are not arranged in the proper order according to the rules of the language. For example, if "receive" is spelled as "recieve," that would be considered a misspelled word.
The term "misspelled" is derived from the prefix "mis-" meaning incorrect or wrong, combined with the root word "spell" which comes from Old English "spellian" meaning to say or to place letters in order. The past participle "-ed" is added to indicate an action has been completed.