If the mask is called ''Majora's Mask'', who do you think Majora is?

well... I think it was a beast that had armor that would be able grant you a wish, and the mask was carved from a piece of the armor, and a part of soul, from the beast, went with it.

sorry I'm not the best at explaining things or writing.

I think it's either the name of the tribe leader, the tribe itself, or the person who made the mask.