Definition of "day-dawn" [day-dawn]

• Break of day; the dawn. (noun)

The Century Dictionary (Public Domain)

• "And in this stretch of ocean, lookouts were mastheaded at day-dawn and kept mastheaded until twilight of evening, when the Mary"
• "Then said she, “O Masrur day-dawn draweth nigh and there is naught for it save to fly for fear of scandal and spy!”"
• "[If it be winter, the hour will be sunrise, or if summer, before day-dawn, and in the other seasons at some hour midway.]"