The story
From the small number used to identify such hours (e.g. 1 o'clock, 2 o'clock).
Etymology from Wiktionary, CC BY-SA 4.0.
small hours
Today it means: The very early morning, just after midnight, when most people are asleep. Full definition →
Today it means: The very early morning, just after midnight, when most people are asleep. Full definition →
From the small number used to identify such hours (e.g. 1 o'clock, 2 o'clock).
Etymology from Wiktionary, CC BY-SA 4.0.