Sagittarius (n.)youdaoicibaDictYouDict[Sagittarius 词源字典]
zodiac constellation, late Old English, from Latin, literally "archer," properly "pertaining to arrows," from sagitta "arrow," which probably is from a pre-Latin Mediterranean language. Meaning "person born under Sagittarius" (properly Sagittarian) is attested from 1940. It represents a centaur drawing a bow, but to modern observers unfamiliar with either it looks vaguely like a teapot.[Sagittarius etymology, Sagittarius origin, 英语词源]
TahitiyoudaoicibaDictYouDict
from native Polynesian Otahiti, of uncertain meaning. It was called in turn Sagittaria (1606, by the Portuguese), King George III Island (1767, by the British), Nouvelle-Cythère (1768, by the French). Related: Tahitian.