In Greek mythology, Poena (also Poine) is the spirit of punishment and the attendant of punishment to Nemesis, the goddess of divine retribution. Her Roman equivalent may have been Ultio. The Latin word poena, "pain, punishment, penalty", gave rise to English words such as subpoena and pain. The original word is the Ancient Greek poinḗ (ποινή), also meaning penalty. Poena was also treated as a host of spirits called poenai that were similar in nature to the Erinyes.