Magecraft

Magecraft or Thaumaturgy, is the artificial reenactment of Mystery, which is ordinarily possible only by inhuman beings.

It is the ability to bring about what is possible through science with supernatural means; although the process is considered a miracle, the result is not. The limits of Magecraft have changed with time, as science evolved and Magic from the past became possible through science.

There exists no impossibility for modern Magecraft within the rules of the world and limits of human intellect; there are limitations, however, where it only appears that something is possible. Because Magecraft acts as the reenactment of preexisting phenomena, it is impossible to use it to create new Mysteries; even with an infinite amount of research, there exists a "wall" preventing human wisdom from doing so in the current era. The realm past this "wall" is known as Magic.

Thaumaturgy
The thaumaturgy (word formed starting from the Greek θαῦμα thaûma, thaumat-, "prodigy" and ἔργον érgon "work") is a branch of religion that deals with prodigies, miracles and magic.