De moi, je ne say qu'en dire, d'autant que je ne veux affirmer ny le si ny le non en ce dont je n'ay vidence. As an interjection to negate what was said right before or expose it as sarcasm, it can be attested by 1900, popularized 1989 by "Wayne's https://non86430.worldblogged.com/32726108/rumored-buzz-on-non