Severus Snape is a brilliant man.
Severus - Sever means “to cut off.” Snape appears to have “cut off” his ties with the Dark Lord through the first five books, and then with Dumbledore and the Order in Half-Blood Prince. “Severe” means “cruel, strict” - two characteristics that accurately describe the Potions Professor. Sounds very similiar to the Latin word “servus,” meaning “servant.” Is he still a servant of Voldemort’s? In ancient history, Lucius Septimius Severus restored stability to the Roman Empire after the tumultuous reign of Emperor Commodus (See Albus) and the civil wars that erupted in the wake of Commodus’ murder. To read more on this story, go here. The name Severus is also mentioned in Mansfield Park by Jane Austen, a favorite book of J.K. Rowling. Additionally, a Saint Severus of Alexandria (Egypt) was martyred along with a Saint Peter and a Saint Leucius for publicly proclaiming the faith around 309 C.E. Severus, Peter, and Lucius - quite a coincidence!
Snape - A town in England. Also based after a person J.K. Rowling knew.