Agin

At which juncture, he exclaimed, in a voice of dire exasperation : “Bust me, if she ain't at it agin !”

Source: wiktionary

[The Court] said: "Young man, this ere Court is satisfied that there ain't nothin' in the laws of Vermont agin tippin' over a churn full of sap. […] But I want ye should remember one thing—that this ere Court has made up his mind that it's a very naughty trick, and it's a shame that there's so many maple-trees in the State, and no law agin tippin' over sap."

Source: wiktionary

when I got to that old shackly brick store by the Temperance Tavern, I backed up agin the wall to have another think.

Source: wiktionary

[Howland Owl:] Boy! There's prejudice for you... I got a pure, pristine boy here an' you're agin him. [Porky Pine:] I ain't AGIN him... I jus' ain't FOR him...

Source: wiktionary