How to spell METTY correctly?

The correct spelling for "metty" could be "mettle", "medley" or "merry". It depends on the context in which the word is being used. If it is in reference to a person's strength or determination, "mettle" is the correct spelling. If it is referring to a mixture or combination, "medley" is the correct spelling. If it is in reference to being cheerful or festive, "merry" is the correct spelling.