slit: No connection with "slight," but from the same root as "sly" and so = "cunning." So in Eph 4:14, "sleight of men," for kubeia, "dice-plalying" (compare "cube") "gamblers' tricks" "trickery."
The International Standard Bible Encyclopedia
Sleight
The International Standard Bible Encyclopedia, James Orr (1915). Public domain, from the CrossWire SWORD module.