The name Cadmus is a boy's name of Greek origin meaning "one who excels". Cadmus and is often added to lists like Mythological Baby Names for Boys and discussed in our forums with posts like "Baby a Day".
From the experts:
Cadmus is the name of the serpent-slaying hero of Greek mythology who also founded the city of Thebes and is credited with inventing the alphabet. Its ancient feel might appeal to modern parents — especially since Cadmus Peverell is a human Harry Potter character, one of the three original owners of the Deathly Hallows.