Here is an odd word that I have read over before, but never tried to find out the true meaning. I found it this time in “The Hound of the Baskervilles” in The Greatest Adventures of Sherlock Holmes.

Gainsaid – past tense of gainsay – to deny; dispute; contradict

Usage: “This Manor of Baskerville was held by Hugo of that name, nor can it be gainsaid that he was a most wild, profane, and godless man.”