Misspellings

[Hina Muqadas]

misspelling (noun, plural: [misspellings])
Simply means: a wrongly spelled word (or spelt! - contrary to what many think, this isnt a misspelling, but a seldom used form of spelled).
Typos, on the other hand, refer specifically to typographical errors (of which typo is an abbreviation), which appeared with the first [printing press] (see [Gutenberg]). They generally occur in printed material, or during the use of an implement or machinery whose output is print-like in appearance (including the printing press itself, [typewriters], computers and their keyboards etc.).
An example of a misspelled word would be: phoenatically, used by the person who provided the previous definition of the word misspellings. Correct spelling of that word is: phonetically.
The reasons for assuming that he misspelled the word, and it isnt a typo, are threefold:

on the keyboard, the e key is not in the immediate vicinity of the two adjacent letters (o and n).
the word phonetic has its origins in ancient Greek; many Greek words (and names) use the compound vowel oe (such as: phoenix, Phoenicians, or perhaps the best known one: [Oedipus]). Hence his confusion.
a practical reason: he did not correct his mistake, thinking it was correct.
So much then, for the [differentiation] between an ignorance-induced misspelling and a printing or typing mistake known as typo.

[Oralee]

the act of spelling a word wrongly, or an example of this: