D defs.my
Entry 2 senses Webster, 1913

day-star

/(dā"stär`)/ · day·-star · IPA
01 n. The morning star; the star which ushers in the day; -- usually the planet Venus, when seen before and just after sunrise.
  1. 1.
    The morning star; the star which ushers in the day; -- usually the planet Venus, when seen before and just after sunrise.
    “A dark place, until the day dawn, and the day-star arise in your hearts.” — 2 Peter i. 19.
  2. 2.
    The sun, as the orb of day.[Poetic]
    “So sinks the day-star in the ocean bed, And yet anon repairs his drooping head, And tricks his beams, and with new-spangled ore Flames in the forehead of the morning sky.” Milton.