demnition

Damned.

1841, Edward FitzGerald, letter to W. F. Pollock dated 10 February, 1841, in The Variorum and Definitive Edition of the Poetical and Prose Writings of Edward FitzGerald, Volume 7, p. 22, Luckily for you, my farming is a good deal hindered by these demnition snows and frosts […]

It is hard to tell whether the American stage is going to the demnition bow-wows for lack of honest and intelligent criticism or whether there is no such thing as criticism because there is nothing on the American stage worth criticising.

Damned, very.

‘The wine is demnition good!’ replied Selden; ‘but our friend Charley seems to be in the dumps—it don’t wake him up.’

1918, Clarence Herbert New, The Unseen Hand: Stories of Diplomatic Adventure, New York: Caldwell, Chapter 1, p. 12, They read a bloomin’ magazine story clear through from start to finish—written by a man who’s not even English, I’m told—an’ then are so demnition thick they don’t even know it’s pure fiction!

Damn (used to express anger, irritation, disappointment, annoyance, contempt, etc.).

“[…] It is enough to make one swear. Demnition! if my mother heard of it, what would she say!”