Definitions
1.nounA vote against."I vote nay, even though the motion is popular, because I would rather be right than popular."
2.nounA person who voted against."The vote is 4 in favor and 20 opposed; the nays have it."
3.nounA denial; a refusal. https//books.google.com/books?id=uysQzJy9IwMC&pg=PA818&dq=%22word+nay+a+denial+refusal%22&hl=en&sa=X&ved=0ahUKEwij_5CHi-3cAhWJ2FMKHWjCDdMQ6AEIJzAA#v=onepage&q=%22word%20nay%20a%20denial%20refusal%22&f=false
4.verbTo refuse.
5.adjectiveNary.
6.adverbNo.
7.adverbIntroducing a statement, without direct negation.
8.adverbOr rather, or should I say; moreover (introducing a stronger and more appropriate expression than the preceding one)."His face was dirty, nay, filthy."
9.interjectionNo.