These names occur in the mythologies and legends of ancient Greece.
AtlantisἈτλαντίς(Island)Greek Mythology Derived from Greek Ἄτλας (see Atlas), a mythological king with the same name as the Titan. According to Greek mythology, Atlantis was an island that sank in the Atlantic Ocean.
IthacaἸθάκη(Island)English, Greek Mythology From Greek Ἰθάκη (Ithake), meaning unknown. This is the name of an island off the west coast of Greece. In Greek mythology Ithaca was the home of the hero Odysseus. Homer's epic the Odyssey describes his long and perilous voyage home after the Trojan War.
NysaΝῦσα(Region)Greek Mythology Possibly from an archaic Greek word meaning "tree". In Greek mythology Nysa was the mountainous region where young Dionysos was raised.
TroyΤροία(Settlement)Greek Mythology, English From Greek Τροία (Troia), said to derive from its mythical founder Τρώς (Tros), but more likely of Luwian or Hittite origin. In Greek mythology (most notably in Homer's Iliad) this was the name of a city, also called Ilium, that was besieged by the Greeks after Helen was abducted by Paris 1.