Brendan pointed out that metaphysics is a real world term that means the same thing, so that's something you can use as a starting point, if you want, I suppose. Unless you mean in-universe, then it probably won't work. Not sure I can help much with that either.

I'd have to research the history of physics and metaphysics. Maybe I can find something similar that won't be out of place in the mouth of a falcon...

Yeah, that would make a difference. I had always assumed falcons to be relatively intelligent and well educated though, so metaphysics could sound right at home.

Just add monocles.

You could use thaumaturgy, theurgy, supernatural, preternatural, psionic, extranatural, paranormal, spiritual, mystic, mystical, paranatural, supernormal, transcendental, or alchemy. They have similar meanings, and you can choose one that has the right sort of meaning for what you want.

I will end up using them all, I am sure.

I'll have to look some of those up. I want it to run contrary to "magic" which, for my purposes, is the human attempt to control nature through conjuring and other diabolical means. Magic is essentially a knock-off of the God-given powers that come with Lor-Amar's cobha.

The thing about "cobha" is that, as I understand the term, it means the things that are part of the natural laws of the secondary-world that are not part of ours. For example, in Narnia the world is flat, so that the idea of a flat world is normal there; there is thus, of course, no word in "Narnian" for a world being flat. In Aubrey Hansen's as-yet-unpublished Erde everything "fades," which the world's inhabitants only know to remark on because there was a time when it wasn't that way. And in the Tortall series by Tamora Pierce, in addition to "magic" (so called because it is restricted to a class of people, and other beings, with specific gifts), breaking an oath made in one's own blood causes one to die instantly, which is again seen as normal (if a rarely used feature of the way the world works).

In my own work, I've somewhat begrudgingly settled on the term "applied metaphysics" for the category of supernatural abilities including both "the Power" (the ability that God gives some to apply his power more directly) and "magic" and every synonym (which I've decided to say are technical terms for False and forbidden though sometimes temporarily potent imitations).

Of Tashraf's list of terms, of those that I've met at all (his list is the one place I've ever met "paranatural"), I've seen every single one used for something that I would want to avoid evoking were I in your place. But if I had to pick one I would settle on "transcendental," because the one place I've met it used for something not having anything at all to do with God is in the "Transcendentalist" school of American poets.