ante meridiem

noun ante meridiem

• dawn — Dawn is the time of day when light first appears in the sky, just before the sun rises.
• prime — of the first importance; demanding the fullest consideration: a prime requisite.
• daybreak — Daybreak is the time in the morning when light first appears.
• morn — morning.
• aurora — an atmospheric phenomenon consisting of bands, curtains, or streamers of light, usually green, red, or yellow, that move across the sky in polar regions. It is caused by collisions between air molecules and charged particles from the sun that are trapped in the earth's magnetic field