adjective, wit·ti·er, wit·ti·est.
Origin of witty
Examples from the Web for wittiness
But the prettiness and wittiness are Betty's; do we not all know that?Love's Usuries|Louis Creswicke
And the result would be that he would kill the wittiness of the lines by burlesque.The Secrets of a Savoyard|Henry A. Lytton
A man of more wisdom than wittiness, and brain than fancy; and abler to any thing than to make verses.Microcosmography|John Earle