1921, B. M. Bower, chapter 6, in Sawtooth Ranch
To confess; admit the truth.
1977 Oct. 23, John Gardner, "The World Of Tolkien," New York Times (retrieved 12 Sept 2013)
2005 August 8, "Quotes of the Day," Time (retrieved 12 Sept 2013)
To outsmart.
To unnerve.