Well it's the word "zmaj" backwards, which is a word for dragon.
- Jett Ryu is based on the fairy tale "The Green Serpent" (his dad is Stone Ryu)
- Ascalon Georgia is based on St. George and the Dragon (and Agent Georgia)
- Medusa York is based on Medusa of mythology and Medusa Gorgon of Soul Eater (and Agent York)
- Zenzi (Zacax the Gunsmith's OC) is based on Arthur Pendragon of the Round Table.