威 (wēi): To threaten; power, might, prestige. This character represents the element of intimidation and fear.
逼 (bī): To force, to compel, to pressure. This is the action of applying the threat from `威`.
利 (lì): Benefit, profit, advantage. This character represents the “carrot” or the tempting offer.
诱 (yòu): To entice, to lure, to tempt. This is the action of dangling the benefit from `利`.
The idiom is a perfect fusion of two distinct but related actions: `威逼` (to threaten and force) and `利诱` (to entice with benefits). Together, they form a complete and powerful strategy for manipulation, capturing the dual nature of this psychological tactic.