https://www.youtube.com/watch?v=Bx5eD4JelpY

Robert Graves has proposed the only Greek derivation available. Perseus might be from the Greek verb πέρθειν (pérthein, "to waste, ravage, sack, destroy") some form of which appears in Homeric epithets. According to Carl Darling Buck (Comparative Grammar of Greek and Latin), the –eus suffix is typically used to form an agent noun, in this case from the aorist stem, pers-. Pers-eus therefore is a "sacker of cities", that is, a soldier by occupation, a fitting name for the first Mycenaean warrior.