Charon

Fierce brightness or keen gaze

In Greek mythology, Charon is the ferryman of Hades who carries souls of the newly deceased across the rivers Styx and Acheron. The name likely derives from the Greek word 'charopós', referring to a piercing or flashing light, often associated with a fierce or intense expression. While historically masculine in myth, it is occasionally used as a rare unisex name in modern times.