I was replying to something. Just read the comment I was replying to. Also, yes, many languages have more than two genders. That’s a non-binary gender system. But no particular word in those languages is “non-binary”.

Words can certainly change gender over time or be non-gendered if that is what you mean. But it doesn't make any sense to say that a word is non-binary in a trinary gender system like in Latin.