Aaden is another example of this trend. Aidan is the traditional Irish spelling and an anglicized form of the ancient Gaelic name "Áedán" or "Aodhán." These names are a derivative of the diminutive Áed from "Aodh" meaning "little fire." In Irish mythology, Áed was the god of the underworld.
Meaning: One who is fiery, little fire Origin: Gaelic