Zodiac celestial coordinate system, or more specifically an ecliptic coordinate system, which takes the ecliptic as the origin of latitude and the Sun's position at vernal equinox as the origin of longitude. The English word ' derives from ', the Latinized form of the Ancient Greek "zōidiakòs kýklos" (), meaning "cycle or circle of little animals". "Zōidion" () is the diminutive of "zōion" (, "animal"). The name reflects the prominence of animals (and mythological hybrids) among the twelve signs. The zodiac was in use by the Roman era, based on concepts inherited by Hellenistic astronomy from Babylonian astronomy of the Chaldean
Agatha (given name) Agatha (given name) Agatha also Agata, is a feminine given name derived from the Ancient Greek word ἀγαθός ("agathos"), meaning "good". It was the name of St. Agatha of Sicily, a third-century Christian martyr. The name has been rarely used in English-speaking countries in recent years. It was last ranked among the top 1,000 names for girls born in the United States during the 1930s. In Russian, the name "" ("Agata") was borrowed from the Western European languages, and derives from the same Ancient Greek root from which older names Agafya and Agafa also come. Its masculine version is Agat.