to strip off: to take clothing or covering off someone or something, including skinning an animal or plundering the dead.
At its core this word means to peel a covering away. Most often that covering is clothing: a person takes off their own robe, or someone forcibly pulls the clothes off another. It is the everyday word for undressing, but in the Bible it is rarely neutral, because removing someone's clothing is usually an act of either ritual change or violence.
The same motion reaches further than cloth. Used of an animal, it means to skin it, peeling the hide off a carcass for sacrifice. Used of a fallen soldier, it means to strip the body of its armor and valuables after a battle. And used as a threat, it pictures a person or city left exposed and shamed, with everything that covered and protected them torn away.
What ties these uses together is the single image of pulling off an outer layer to leave what was underneath bare. Whether the covering is a garment, a hide, or the dignity of a defeated enemy, the action and the result are the same: the covering comes off, and what it hid is uncovered.