Definition of "deceitfulness"

O full off all sutelte and disseytfulnes the chylde off the devyll, and the enemye of all righteousnes thou ceasest not to pervert the strayght wayes off the lorde.

1526, [William Tyndale, transl.], The Newe Testamẽt […] (Tyndale Bible), [Worms, Germany: Peter Schöffer], Acts ]

'This is the hend, is it, of all my bearing with her deceitfulness, her lowness, her falseness, her laying herself out to catch the admiration of vulgar minds . .'

1839, Charles Dickens, chapter 42, in Nicholas Nickleby

The lanterns both rear and forward being always in sight, I was as much at sea as any one as to the length of the herd, knowing the deceitfulness of distance of campfires and other lights by night.

1903, Andy Adams, The Log of a Cowboy: A Narrative of the Old Trail Days, ch. 20 "A Moonlight Drive"