Green’s Dictionary of Slang

(US) a euph. for damned adj.

1854		M.J. Holmes Tempest and Sunshine 94: I’ve got such fetched big corns on my feet, that I ain’t goin’ to be cramped with none of your toggery.
1860		M.J. Holmes Cousin Maude and Rosamund 155: I’se not gwine to spile what little beauty I’ve got with that fetched complaint .