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
Greek drachma Greek drachma Drachma ( , ; pl. "drachmae" or "drachmas") was the currency used in Greece during several periods in its history: It was also a small unit of weight. The name "drachma" is derived from the verb (, "(I) grasp"). It is believed that the same word with the meaning of "handful" or "handle" is found in Linear B tablets of the Mycenean Pylos. Initially a drachma was a fistful (a "grasp") of six "oboloí" or "obeloí" (metal sticks, literally "spits") used as a form of currency as early as 1100 BC and being a form of "bullion": bronze,