An ancient and seldom referred to language called Dagspi used the term ori to describe the mythical super beast that lived in the dark woods. Much the same manner that modern parents tell children to be good or Santa won't come, ancient residents of north east asia likely used Super Beast Ori to scare children into behaving. Little is known about the ancient culture and we only have sparse translations from a book called the Manual of Arms, which was written in two languages, the second being quite similar to Spanish.
If you act like a troll, super beast Ori will come out at the crack of noon to eat you.
A group of humans(from the stargate universe), who have recived superpoweres in order to spread a religion known as origin. This religion was practiced by a group of ancient who belived they were gods.
The ori exist as flame, but they send their Priors to convert the milky way galaxy.