Sleight
Vine's Expository Dictionary of NT Words [1]
denotes "dice playing" (from kubos, "a cube, a die" as used in gaming); hence, metaphorically, "trickery, sleight," Ephesians 4:14 . The Eng. word is connected with "sly" ("not with slight").
Webster's Dictionary [2]
(1): ( n.) Cunning; craft; artful practice.
(2): ( n.) Dexterous practice; dexterity; skill.
(3): ( n.) An artful trick; sly artifice; a feat so dexterous that the manner of performance escapes observation.
Hastings' Dictionary of the Bible [3]
Sleight . The word tr. [Note: translate or translation.] ‘sleight’ in Ephesians 4:14 , ‘by the sleight of men,’ means literally dice-playing . Tindale uses ‘wylynes,’ which is more intelligible now than ‘sleight.’
King James Dictionary [4]
SLEIGHT, n. slite.
1. An artful trick sly artifice a trick or feat so dexterously performed that the manner of performance escapes observation as sleight of hand. 2. Dexterous practice dexterity.
International Standard Bible Encyclopedia [5]
slı̄t : No connection with "slight," but from the same root as "sly" and so = "cunning." So in Ephesians 4:14 , "sleight of men," for κυβεία , kubeı́a , "dice-plalying" (compare "cube") "gamblers' tricks" "trickery."