constellation, 1390, from L., lit. "archer," prop. "pertaining to arrows," from sagitta "arrow," which probably is from a pre-Latin Mediterranean language. Meaning "person born under Sagittarius" (prop. Sagittarian) is attested from 1940.
Sagittarius (sāj'ĭ-târ'ē-əs) Pronunciation Key
A constellation in the Southern Hemisphere near Scorpius and Capricornus. Sagittarius (the Archer) is the ninth sign of the zodiac.