Mischief, malignity.

1

1866.  Cussedness, meaning wickedness, malignity, and cuss, a sneaking, ill-natured fellow, in such phrases as “He done it out o’ pure cussedness” and “He is a nateral cuss,” have been commonly thought Yankeeisms…. Cursydnesse, in the sense of malignant wickedness, occurs in the Coventry Plays.—J. R. Lowell, Introd. to the ‘Biglow Papers,’ 2nd Series.

2

1875.  The depraved mule rejoices in his heart if he can make some one miserable. It is a trait for which in the West they have a specific term. They call it “pure cussedness.”—S. J. Barrows, ‘The Northwestern Mule and his Driver,’ Atlantic Monthly, xxxv. p. 554/1 (May).

3

1877.  The Constitution is about to be used once more by the Democrats as a screen for “pure cussedness.”New York Tribune, May 12 (Bartlett).

4