What does hyacinth mean?

Answer 1

Hyakinthos was a Greek youth that Apollo and Zephyr were throwing a discus. Zephyr was jealous that Apollo paid too much attention to Hyakinthos so he killed him with a discus blow to the head. Apollo created the flower out of the blood of Hyakinthos.

Answer 2

In botany terms this would be a plant having narrow leaves and fragrant flowers.