The word drag can be used either a a verb or a noun. As a verb it usually meant to draw, to pull. There was a sense of attraction, of dragging something or someone to oneself or on the ground, to draw. Another meaning could be "'to take a puff' on a cigarette". It is interesting for me that every use of the verb involves something or someone else, even in the terms like drag-out which means a violent fight, there is a concept that you need an other involved, and often this other involved is an object or part of a body 'to drag one's feet'. There is a theory involving the idea that drag comes from the fact that it was about objects dragging in the floor which is very interesting because this would give an object its own agency and attributed to the Object.
As a noun we can trace the origins of drag back to "dragnet", used in 1300 as a grapnel, which is literally an object used to drag other things, so it is an object performing the action of dragging. It would again be possible to decenter the human from the action and see the object as a performer, even though it is a play with words and language that was created by humans for humans and is therefore anthropocentric and humanist in and out of itself.