Damnder

Blank departed, and [John] Forster arrived; and in the course of the interview [Charles] Dickens, thinking it would please him, took occasion to tell what had been said about him by Blank. “I am very sorry, my dear Dickens,” said Forster, “that I cannot return the compliment, for a damnder ass than your friend Mr. Blank I never met in a business affair!”

Source: wiktionary

Well, Bill Montgomery is a damnder fool than I took him to be. Why, I can follow that track for a week and tell within five minutes of the time he crosses every mud hole on the way. Jim Black never knowed much about the woods, but he ought to have known better than to leave signs as plain as these when he goes hunting such dangerous game as you and me, captain.

Source: wiktionary

“I’ve been a d——d fool, Mag,” he said, trying to smile—“a damnder fool than ever; and that’s saying a good deal——”

Source: wiktionary

Austin, was the fellow’s name, a damnder fool you would not want to see, I thought, when he came to me at Louisville and said, “General, I believe I can help you in this matter.”

Source: wiktionary