To begin to grow light.
The first appearance of light in the morning; daybreak; a beginning.
No; of course the day would never dawn when he would dare to tell her that. – Winding Paths by Gertrude Page
A change of weather had come with the dawn. – Queechy, Volume II by Elizabeth Wetherell
It was the dawn of his great day. – The Heart of Unaga by Ridgwell Cullum