[Wikipedia] Etymology: Bellis may come from bellus, Latin for "pretty", and perennis is Latin for "everlasting".[7] The name "daisy", possibly originating with this plant,[4] is considered a corruption of "day's eye",[8] because the whole head closes at night and opens in the morning. Geoffrey Chaucer called it "eye of the day". In Medieval times, Bellis perennis or the English Daisy was commonly known as "Mary's Rose".[9] Historically, the plant has also been widely known as bruisewort, and occasionally woundwort (although this name is now more closely associated with the genus Stachys). It is also known as bone flower.[10] (link added by Mary Ann Machi)