To move upward under one's own becoming — ascent; what the sun, bread, and hope do.
Old English risan (to rise up, get up), from Proto-Germanic *reisan, from a Proto-Indo-European root meaning to rise; movement upward under a thing's own power rather than being lifted.
Ascent that happens under a thing's own becoming, the way the sun, bread and hope are each said to rise rather than to be raised.