DemeteryoudaoicibaDictYouDict[Demeter 词源字典]
goddess of agriculture, mother of Persephone, from Greek Demeter; the second element generally given as mater (see mother); the first element possibly from da, Doric form of Greek ge "earth" (see Gaia), but Liddell & Scott find this "improbable." The Latin masc. proper name Demetrius means "son of Demeter."[Demeter etymology, Demeter origin, 英语词源]