daf·fo·dil 
(dăfə-dĭl)
(dăfə-dĭl)n.
1.
a. Any of various bulbous plants of the genus Narcissus, especially one of the many cultivated varieties of N. pseudonarcissus, having showy, usually yellow flowers with a trumpet-shaped central corona.
b. The flower of any of these plants.
2. A brilliant to vivid yellow.
[Alteration of Middle English affodil, from Latin asphodelus, asphodel; see ASPHODEL.]