or even, or more like, or should I say. Introduces a stronger and more appropriate expression than the preceding one
And even in our wildest and most wandering reveries, nay in our very dreams, we shall find, if we reflect, that the imagination ran not altogether at adventures,.
Not this merely, but also; not only so, but; used to mark the addition or substitution of a more explicit or more emphatic phrase
emphasis You use nay in front of a stronger word or phrase which you feel is more correct than the one you have just used and helps to emphasize the point you are making. Long essays, nay, whole books have been written on this. = indeed
a negative; "the nays have it" not this merely but also; not only so but; "each of us is peculiar, nay, in a sense unique
Nay is sometimes used to mean `no' when talking about people voting against something or refusing to give consent for something. The House of Commons can merely say yea or nay to the executive judgment