Kara was the name Pasht used at the time that she trained Jaina Jade in the ways of hunting vampires. Jaina uses this name to distinguish between pre-vampiric Kara and vampiric Pasht.
"Ma'atkara" (the full name from which Pasht derived "Kara") means approximately "truth is the soul of Ra" in ancient Egyptian. It was a throne name of Hatshepsut. "Kara" also happens to mean "beloved" in Latin.