Holskthuba Trachahrmsyn

Rho: Greek letter used in physics equations to represent momentum.

Magus: Mage

Asclepiot: Derivation of Asclepius who was known as a healer through snake divination. The Caduceus, which is the staff wielded by the Greek god Hermes, is also referred to as the rod of Asclepius. It's also become synonymous with snake handling. Serpents, snakes, and lizards were synonymous with the word dragon in Ancient times so sometimes the name Asclepius will be translated into English as "Dragon Arm". Super stretch but it's as close as I could get.

Hence, Fast Mage Dragon Arm's son.