zodiac sign, late Old English, from Latin Capricornus, literally "horned like a goat," from caper (genitive capri) "goat" (see cab) + cornu "horn," from PIE *ker- (1) "horn; head, uppermost part of the body" (see horn (n.)); a loan-translation of Greek Aigokheros, the name of the constellation. Extended 1894 to persons born under the sign.[Capricorn etymology, Capricorn origin, 英语词源]