Question: What does the word/name “Mormon” mean?

Answer: On May 15, 1843, Joseph Smith wrote to the editor of the Times and Seasons:

“Sir, through the medium of your paper I wish to correct an error among men that profess to be learned, liberal and wise; and I do it the more cheerfully because I hope sober-thinking and sound reasoning people will sooner listen to the voice of truth than be led astray by the vain pretensions of the self-wise.

“The error I speak of is the definition of the word ‘Mormon.’ It has been stated that this word was derived from the Greek word ‘mormo.’ This is not the case. There was no Greek or Latin upon the plates from which I, through the grace of the Lord, translated the Book of Mormon.

“Let the language of the book speak for itself . . . I may safely say that the word ‘Mormon’ stands independent of the wisdom and learning of this generation. The word Mormon, means literally, more good.”

Source: 400 Questions and Answers About the Book of Mormon by Susan Easton Black, p. 192.