Why is a daisy also called a margaret or a marguerite?

That Daisy is a nickname for the feminine proper name Margaret and that marguerite is a French equivalent for daisy and for oxeye daisy account for daisies also being called margarets and marguerites. Daisy also serves as a common designation for the Asteraceae or Compositae family of asters, composites, daisies and sunflowers. The modern English Word traces back to the Old English phrase dæges eage for "day's eye" since daisy petals open at dawn and shut at dusk.