[κυβεία] from κύβος (a "cube", i.e. die for playing); gambling, i.e. (figuratively) artifice or fraud
Usages throughout the bible
Ephesians 4:14
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That we henceforth be no more children, tossed to and fro, and carried about with every wind of doctrine, by the sleight G2940 of men, and cunning craftiness, whereby they lie in wait to deceive;