It’s not reallya misspelling. It’s an alternate spelling for a different form of the word. A word that started colloquially. Either way, several words have multiple accepted spellings even outside of regional stuff like color/colour. Pallet and palette are two normal spellings of that word with different main meanings but nigh equivalent over-all meanings, for example. I know I’ve ran in to many more, but the brain’s still starting up…
Wrong. Look up the definitions. They literally reference each other as same.