Written because during C&C Saints the issue of the certified miracles that are required to show that a Saint was in position to nag Himself in person, so to speak; that would require figuring out what a miracle is, and then what it takes, and even a basic summary is worth its own post. So here’s a post, only slightly re-written.
Literally, it’s from the the Latin for “wonderful”. As we are using it, it’s close– wonder-workers, things done by supernatural power, specifically those things done by the power of God. There are several Greek terms at the link for specific meanings if anybody wants to go and break it out.