It is the castilianization of the term Fritillaria, which is the name of a genus of bulbous and perennial plants belonging to the family Liliaceae. The term is of Latin origin and means chessed or squared (which is one of the characteristics of flowers). It derives from the term fritillus which means cubicle. Chessed flowers.
Fritilaria : Genus of lilyaceae plants, with scattered leaves, colorful flowers, hanging on top of a bohort and small bulb.