Riley comes from the Irish surname O Raghallaigh, popularly translated as "valiant" though the surname's own root is debated among genealogists, with some tracing it instead to a place name. The popular reading has stuck, and the name tends to carry connotations of spirited resolve.
Venus answers those who are ruled by Jupiter, and Jupiter answers those ruled by Venus. - Picatrix (Andalusia, ~1000.AD)