Subtilty

n.	1.	The quality or state of being subtile; thinness; fineness; as, the subtility of air or light.
	2.	Refinement; extreme acuteness; subtlety. Intelligible discourses are spoiled by too much subtility in nice divisions. - Locke.
	3.	Cunning; skill; craft. To learn a lewd man this subtility. - Chaucer.
	4.	Slyness in design; artifice; guile; a cunning design or artifice; a trick; subtlety. O full of all subtility and all mischief. - Acts xiii. 10.