Examples from the Web for derned
Look at that feller shut his eyes and stretch his derned old neck!
But that derned Welshman got around her and she growed cold.
Well anyway, this derned story is going about, and something's got to be done to stop it.
I've met some derned good liars in my time, but you beat the lot.
I reckon that some of us are too derned proud—But we ain't cold.The Crisis, Complete
Word Origin and History for derned
"secret, hidden" (obsolete), from Old English derne "concealed, secret, dark," from West Germanic *darnjaz (cf. Old Saxon derni, Old Frisian dern, Old High German tarni "secret, concealed").
As a verb, "to conceal," from Old English diernan "to hide." Cf. Old High German tarnjan "to conceal, hide;" German Tarnkappe "cloak of invisibility." Related to dark (adj.). French ternir "to tarnish, to dull" is a Germanic loan-word.