[Vuejs]-Why is the parameter h called like this in the render function?

The best answer I got comes from a response to an issue on the Vuejs templates project by bjunc. Here is the explanation :

As noted by Evan in this issue reply, the meaning of h comes from hyperscript:

It comes from the term “hyperscript”, which is commonly used in many virtual-dom implementations. “Hyperscript” itself stands for “script that generates HTML structures” because HTML is the acronym for “hyper-text markup language”.