hyacinthyoudaoicibaDictYouDict[hyacinth 词源字典]
hyacinth: [16] Greek huákinthos denoted a plant with deep red flowers which according to legend sprang from the blood of Hyacinthus, a beautiful youth whom Apollo loved but accidentally killed. It probably came from some pre-Hellenic Mediterranean language, and was remodelled in Greek on the basis of Hyacinthus’s name. It is not clear what sort of plant the original hyacinth was, but by the time the word reached English (via Latin hyacinthus and French hyacinthe) it had been adopted for the bluebell and its immediate relatives.

Greek huákinthos was also used for a variety of precious stone, probably originally the sapphire. This meaning too followed the word into English, but is now little used, having been taken over by jacinth [13] – itself a descendant of Latin hyacinthus.
=> jacinth[hyacinth etymology, hyacinth origin, 英语词源]
hyacinth (n.)youdaoicibaDictYouDict
1550s, "the plant hyacinth;" re-Greeked from earlier jacinth (late 14c.) "hyacinth; blue cornflower," earlier a precious stone blue (rarely red) in color (c. 1200), from Old French jacinte and Medieval Latin jacintus, ultimately from Greek hyakinthos, probably ultimately from a non-Indo-European Mediterranean language. Used in ancient Greece of a blue gem, perhaps sapphire, and of a purple or deep red flower, but exactly which one is unknown (gladiolus, iris, and larkspur have been suggested). Fabled to have sprouted from the blood of Hyakinthos, youth beloved by Apollo and accidentally slain by him. The flower is said to have the letters "AI" or "AIAI" on its petals. The modern use in reference to a particular flowering plant genus is from 1570s.